Voltage divider formula for 2 resistors

When the two capacitors C1-8uF & C2-20uF are connected in series in the circuit, the RMS voltage drops can be calculated across every capacitor when they are connected to 80Hz RMS supply & 80 volts. Usually you use voltage dividers for a voltage reference and not as power source because the voltage is highly dependent on the load and the resistors also dissipate power. So let's solve this using the voltage divider expression. Oct 31, 2023 · A series circuit acts as a voltage divider as it divides the total supply voltage into different voltages across the circuit elements. 2 k-2, R2 = 6. Enter the resistance values (R1, R2) for the two resistors in the divider. We can express the formula in words, then the voltage divider formula says: Vout = (resistance across the output / total circuit resistance) x applied voltage (Vin). 2: PNP Voltage Divider Bias. Jul 5, 2016 · Voltage Divider Rule. In the unloaded case, the same current flows through both resistors. 9 kΩ resistors. Jun 20, 2019 · 1. Resistor voltage divider examples. May 22, 2022 · 5. Jun 1, 2017 · V OUT = (V IN * R 2) / (R 1 + R 2) …. For instance, if you want to read the voltage of a 12 volt power source but your ADC has a maximum input level of 5 volts, the voltage divider will scale the voltage down to a safe level. 4. The potential difference across the resistors can be mathematically written using Ohm’s law. Resistive Voltage Divider. 14 Current Divider Circuit Complete the Mar 9, 2021 · How To Choose a Pull-Up Resistor Value. Dec 21, 2014 · On the other hand, let's compare the current going through the divider in the circuit with large resistors on the divider and the circuit with small resistors on the divider. " v/i = R. Create a matlab code to find voltage through the voltage divider formula. But V2 will not be 1. In 3 we have the 1000 ohm net in series with 1000 ohms, creating a voltage divider with an output voltage equal to half of its input, or 3 volts. While reading voltage across R 1 —R 2, and R 1 —R 2 —R 3 (I’m using a “double-dash” symbol “—” to represent the series connection between resistors R 1, R 2, and R 3), we see how the voltages measure successively larger (albeit negative) magnitudes, because the polarities of the individual voltage drops are in the same Mar 22, 2021 · The voltage divider referenced to ground is created by connecting two resistors in series. It does not matter if there is two, three or any other amount of resistors in series, you know all the resistances and voltages with Ohm's law and can use it as much as needed to find a formula for voltage divider with two or any other amount of resistors. 5 k12, and R3 = 4. Step 1: Define the output voltage. For. The parallel circuit has 3 resistors (100, 200, 300 ohms) and 10V battery source. Voltage Output (Vout) = V. The resistors are connected in series here and the voltage is given across these two resistors. As well as being used to calculate a lower supply voltage, the voltage divider formula can also be used in the analysis of more complex resistive circuits containing both series and According to the voltage divider rule, voltage drops will be, Vout= 2. Notice how the voltage across R 2 is double that of the voltage across R 1, just as the resistance of R 2 is double that of R 1. Aug 22, 2021 · It should be apparent that the voltage drop across each resistor is proportional to its resistance, given that the current is the same through all resistors. It is generally formed using two resistors and a voltage source. I started doing some experimentation, and discovered that no matter what voltage I applied to the circuit, the resistors always cut the voltage and amperage by 33% each. (ergo the voltage divider rule). Since there is no path for current to take another loop, these currents must be the same! That means that. R 2 = Lower resistor . 14, using V, R1, R2, and R3 only 2. Construct the current divider circuit shown below using resistors R1, R2, and Ra part 1. Output. V in = Input Voltage. U 2 = U t o t a l ⋅ R 2 R 1 + R 2. The higher the pull-up value, the lower the voltage on the input becomes. Sep 24, 2015 · A voltage divider is a simple circuit which reduces a large voltage into a smaller one. The 12 and 6 ohm resistors in parallel threw me off. But I am unable to figure out Vx V x across the 6 ohm resistor. The resistors dissipate 10 W and 15 W. This voltage divider calculator can be used to calculate the resistive voltage drop across two, three, four or five resistors in series. The voltage across resistor R1; A voltage divider circuit is very simple circuit consisting of only two resistors (R1 and R2) as shown above. Given a 15V DC input, each of three 4. Thus, the first calculator, technically, isn't needed. 5Vx4 Ohms/12Ohms=0. The formula used is: Output Voltage (Vout) = Input Voltage (Vin) * (R2 / (R1 + R2)) Where: “Input Voltage (Vin Apr 6, 2015 · and. Voltage dividers are one of the most fundamental circuits in electronics. Set the source V to 6 Vdc. Thus the Voltage Divider Formula is as follows: V out =V in × R2 R1+R2 V o u t = V i n × R 2 R 1 + R 2. E1 5 V 2 5 V 3 5 V 4 5 V. V, V out = V in × R 2 R 1 + R 2. com. a. Step by Step Design Process. R1 is the resistance of the first resistor in the series. Vin is the input voltage. The two resistors in a series circuit have voltages of 25 V and 60 V. A series circuit contains the following values of resistors: R1 5510V R2 5680V R3 5390V R4 5750V Assume a source voltage of 48 V. Using these two resistors we can convert an input voltage to any required output voltage, this output voltage is decided by the value of the resistance R1 and R2. One of the common mistakes in using the voltage division rule is to use the formula for resistors which are in parallel with other elements. 7 k2, what is the voltage across R2? Hint: Consider the voltage divider formula. Generally, we need the Voltage division Formula where there is a Series network of the different elements like Resistor, Capacitor, or Inductor. Optimize your electrical circuit design by determining the appropriate resistor configuration for accurate voltage drops. Jan 22, 2024 · Yes. This can be reduced to a simple formula when only two resistors are involved. In the Ideal Voltage Divider math above, we calculated the output voltage as a function of the input voltage v in and the voltage divider ratio f = R 2 R 1 + R 2 only. 4. The Voltage Divider for Two Resistors formula is defined as the division of voltage in a circuit consisting a voltage source and two resistances connected in series and is represented as V R1 = V s *((R 1)/(R 1 +R 2)) or Resistor 1 Voltage = Source Voltage*((Resistance 1)/(Resistance 1+Resistance 2)). 2. Related Posts: Current Divider Rule (CDR) – Solved Examples for AC and DC Circuits. 2 approaches 1). Using the formula: V 1 = (R 1 * V T) / (R 1 + R 2) Table of Contents. A voltage divider is a simple circuit which turns a large voltage into a smaller one. It is formed using two resistors (or any passive components) and a voltage source. This formula is derived from the principles of Ohm’s law and is applicable when two resistors, R 1 and R 2 , are connected in series across an input voltage, V in . V out = Output voltage across R2 which is the divided voltage (1/4 of input voltage) It should be apparent that the voltage drop across each resistor is proportional to its resistance, given that the current is the same through all resistors. Here, V₁, V₂ are the input and output voltage and R₁, R₂ is the resistances of two resistors. In 4. Current through resistor R 1 is given by. Voltage divider formula Questions. It follows that the same value of electric current that flows through each resistive element of the circuit has nowhere else to go. The voltage across resistors R1, R2, and R3 are VR1, VR2, and VR3 respectively. The formula to determine the output voltage if you know the total resistance above and below the position of V out is: V_ {out}= V_ {in}*\frac {R_2} {R_1+R_2} V out = V in ∗ R1 +R2R2. The basic voltage divider circuit consisting of two resistors (R1 and R2) is connected to the power supply (Vs). Next, calculate the current: 24 V/12 Ω = 2 A. To calculate the voltage distribution in a circuit involving three resistors, consider two separate voltage dividers: First, analyze the first resistor (R1) along with the combination of the other two resistors (R2 and R3) connected in parallel. And that equals six times, six over, two plus six is eight. fig 4: Illustration of a resistive voltage divider with the presence of an output load. The input voltage is applied across the series resistances R 1 and R 2 and the output is the voltage across R 2. Using this formula, we can re-analyze the example circuit's voltage drops in fewer steps: Voltage dividers find wide application in electric meter circuits Voltage divider rule. Vout = Output Voltage. May 24, 2010 · For example, check out this problem. V out is the desired output voltage at the junction point of the upper and lower resistor. 1st Resistance (R 1) 2nd Resistance (R 2) Voltage Output (V out) = V. There are 2 steps to solve this one. 2). It can be quite useful to determine how a voltage appearing across two series resistors “divides” between them. This is because it can calculate any voltage divider circuit from 2 to 10 resistors. R 1 is the upper resistor connected in series with the input voltage. , in direct proportion to conductance). We’ve added this calculator to a practical voltage divider calculator page that you can bookmark and come back to in the future. Thus, the output voltage is equal to the input voltage times the resistance ratio which is expressed as the second resistance divided by the sum of the resistance in the divider circuit. Solved Example of Resistive Circuit using VDR. Although, the current through both resistances is same The Voltage Divider Rule. Using this formula, we can re-analyze the example circuit’s voltage drops in fewer steps: Voltage dividers find wide application in electric meter Question: Derive formulas, using the voltage divider and current divider rules, for the following voltage and current in Figure 2. Dec 27, 2020 · 1 Voltage Divider Circuit and Formula; 2 VDR in Two Series Resistors; 3 VDR for Three Resistors; Voltage divider rule with solved examples and step by step Oct 25, 2023 · The calculation in the provided code for the 2-resistor voltage divider calculator is generally correct for calculating the output voltage based on the input voltage and the values of two resistors in a voltage divider circuit. At this point where the jumper wire is placed, the voltage For a voltage divider circuit with two resistors, the formula to calculate the output voltage is: Output Voltage = Input Voltage × (R2 / (R1 + R2)) Where: Input Voltage: The voltage applied to the circuit. V1 = Vin x R1 / Rs. In this case, R1 is 10k and the total resistance will be 60. For example, let’s find the output voltage of a divider circuit with a 12 V supply voltage using 4. 60 V. ), calculate voltage on each resistor • Calculate dissipated power in each of your resistors W R1 15V W R2 Value Units VRE VR2 PR1 PR. Example 1: Consider two resistors 20Ω and 40Ω are connected in a parallel with a current source of 20 A. 'V out' equals 'V in', which is 6 volts. You need to use the full equation here. Vin is the input voltage applied across the entire divider. Using 2 resistors and an input voltage, we can create an output voltage that is a fraction of the input. The output voltage of a voltage divider can be calculated using the following formula: V out = V in × (R b / (R a + R b )) Where: Vout is the output voltage. Thanks Bimpelrekkie. For example, if you use a CD4017 with a power supply of 10V, it requires a minimum of 7V This is the formula RX in this case R1, divided by the total resistance times the applied voltage. Example-1. What is the output voltage V 2 of the divider across R 2? Show formulas used: 𝑅# = 15𝑘Ω Introduction. Sep 21, 2022 · Fill in the input voltage and resistor values in the voltage divider calculator below to find the output voltage: Voltage Input (V 1) V. To divide voltage in half, all you must do is place any 2 resistors of equal value in series and then place a jumper wire in between the resistors. V IN = Input Voltage. Voltage divider formula derivation. Please do not skip steps if you answer it. A series circuit has two resistors. The Current Divider Rule allows us to calculate the current flowing through each parallel resistive branch as a percentage of the total current. Question: A series circuit contains the following values of resistors R1=510 ohms, R2=680 ohms, R3=390 ohms, and R4=750 ohms, Assume a source voltage of 48 v. Calculate resistor values for precise voltage division with our Voltage Divider Calculator. Mar 20, 2021 · This is known as the voltage divider formula, and it is a short-cut method for determining voltage drop in a series circuit without going through the current calculation (s) of Ohm’s Law. And notice this always happens, the 'k's' all cancel out. Oct 25, 2015 · That 2000 ohms is in parallel with the 2000 ohm resistor, making the total resistance equal to 1000 ohms, as shown in 3. To reduce voltage in half, we simply form a voltage divider circuit between 2 resistors of equal value (for example, 2 10KΩ) resistors. Ideally, when you have only 1 resistor in parallel with the Power supply, its voltage is equal to its power supply's voltage only. Example with load. R 1 = Ω, R 2 = Ω, and V 1 =. « Reply #4 on: May 01, 2015, 05:29:07 pm ». R = 100 Ohm + 200 Ohm = 300 Ohm -> I = 16. i. The user can select the input voltage, number of resistors (up to 5) and the units for the resistors. In application the output voltage depends upon the resistance of the load it drives. Mar 24, 2024 · The voltage across each resistor can be calculated using the voltage divider formula: V out = V in × R 2 R 1 + R 2 V_{\text{out}} = V_{\text{in}} \times \frac{R_{2}}{R_{1} + R_{2}} Where: Vout is the output voltage. Dec 14, 2020 · The two signals see different resistances - small-signal sees a voltage divider based on the two 1/gm resistors and large signal sees the square-law equation. The resistors are connected in series form. Otherwise, you are on the right track. It can produce a portion of its input voltage as an output. Every time you add a resistor in series, the voltage gets divided among these resistors. Create a matlab code to find voltage through the current divider formula. Figure 1: Potential Divider. Applications of Voltage Divider Circuits. 5 \mbox{ }\mu A\$ going through them and the small resistors have current of 25 mA. I have a very simple voltage divider. If we combine the resistors in parallel we get 12 12 S eq S RR v The voltage divider requires at least two resistors in series, because without at least two resistors can not form the structure that allows to regulate the voltage. 3 volts is present. The second, R 2 , has a resistance of 3 kΩ. The series circuit has 3 resistors (100, 200, 300 ohms) and 10V battery source. You remove one of the three resistors and just have two resistors connected in series to the voltage source. Question: 1. If we solve this 10 divided by 60 times 120 and in this case we can look at this and see 10 over 60 is going to be one-sixth of 120 is going to be 20 volts, a 20-volt drop… let us just . May 19, 2019 · The resistors‘ values depend on how much current you want to flow. We can use the Voltage Divider/Division Rule to find the voltage across each element of the circuit easily with examples. Voltage Divider Common Uses. R 2 is the (3pts) A voltage divider is built from two resistors in series. While you can work it out by plugging values into the voltage divider formula, I'm looking for some general rule of thumb. (Voltage Divider Equation) Where, V OUT = Output Voltage. Potential dividers are circuits which produce an output voltage as a fraction of its input voltage. Ra and Rb are the resistance values of the two resistors in the voltage divider circuit. In this rule, ‘R 1 ‘ represents the total resistance of the circuit above the point of connection for V out, and ‘R2 A voltage divider divides a voltage between two resistors in a series. Jan 7, 2024 · Voltage Divider: Rule, Formula, Examples. 85 V. The name comes from the difference of the electric potential. Let's consider a voltage divider circuit with two resistors connected in series. R 1 = Upper Resistor. Given a supply voltage of 24 Vpc and series resistors R1 = 8. Example without load. Using just two series resistors and an input voltage, we can create an output voltage that is a fraction of the input. A two-resistor series circuit has an applied voltage of 100 V. Bharadwaj. Xc1 = 1/ 2πfc1. we have redrawn 2, and we can use the 6 volts we got in 3 as the input to The formula to derive the desired output voltage (V out) in a voltage divider circuit is given by: V out = V in * ( R 2 / ( R 1 + R 2)) Where: V in is the input voltage. The voltage across the other resistor is _____. Use the general voltage divider formula to calculate the voltage drop across each of the resistors. Using Ohm’s law, the voltage drop across any resistor can be determined. R1 = Resistor closest to input voltage (Vin) R2 = Resistor closest to ground. Oct 27, 2010 · But is there a general rule for differing values? What about differing tolerances - what if one resistor were ±0. Step 2: Calculating the resistor values. Consider the circuit shown below: By Ohm’s Law, the current in the resistors is: By application of Ohm’s Law again, the voltage across R 1 is: v 1 = R 1 . The required output voltage (Vout) can be obtained across the resistor R2. 1)We have a circuit with two resistors, the first of 3 ohm and the second of 5 ohm connected in series, the voltage of the source has a value of 12 V, calculate the dividing voltage after the first resistance. That's nice. For a simple, unloaded voltage divider with two resistors R 1 and R 2, you can calculate the partial voltages U 1 and U 2 using the following formulas: U 1 = U t o t a l ⋅ R 1 R 1 + R 2. " The two resistors are connected Potential Divider Circuit. Use the general voltage divider formula to compute the voltage drop across each resistor. where. Current Divider Rule (CDR) i Just as voltage can be “divided” by two resistors in series, current can be “divided” by two resistors in parallel. May 1, 2015 · Re: 3 resistor voltage divider. This basic combination allows us to use the Voltage Divider Rule to calculate the voltage drops across each series resistor. As you can see, the large resistors have current of just \$2. Find the voltage across each resistor using the voltage divider rule. Potential dividers have three main purposes: Nov 16, 2023 · The voltage divider formula, V out = V in ×R 2 / (R 1 +R 2 ) , is a fundamental expression used to calculate the output voltage in a voltage divider circuit. Assuming the total voltage across the circuit is 12 volts, and the resistances of the resistors are 3 ohms and 6 ohms respectively, we can use the current divider rule to find the voltage across each resistor. R1 and R2: The resistances of the two resistors in the voltage divider. Figure2 shows a voltage divider circuit in which the total supply voltage V has been divided into voltages V 1 and V 2 across two resistances R 1 and R 2. They obey the much more flexible Ohm's Law, which says, "The ratio of my voltage to current is a constant ratio, determined by my value R. It’s important that the voltage is high enough for the chip to see it as a HIGH, or logical 1, input. \$\endgroup\$ – AlfroJang80 The voltage drop across any particular resistor shall be called EX, where the subscript x is the value of a particular resistor (1, 2, 3, or 4). is the parallel resistance of R 2 and the load resistor R L . R1 and R2 are the resistances of the two resistors. Vout = V1R2 +V2R1 R1 +R2 = V1R2 +V1R1 − V1R1 +V2R1 R1 + R2 = V1 + (V2 −V1) R1 R1 + R2 Mar 12, 2024 · Our Voltage Divider Calculator employs a fundamental formula crucial for designing and understanding electrical circuits, highlighting its importance in practical applications. For example, the voltage division rule cannot be used in the following circuit directly. I2 = Vout −V2 R2 I 2 = V o u t − V 2 R 2. There is a voltage of Vin = 12 volts applied across the two resistors in the divider. Voltage dividers are commonly used for scaling down the voltage input to an ADC channel. Feb 3, 2020 · A simple answer would be: voltage is divided by series. Show. The simplest, easiest to understand, and most basic form of a passive voltage divider network is that of two resistors connected together in series. The two resistor voltage divider is used often to supply a voltage different from that of an available battery or power supply. For an amplifier circuit, the output voltage can be calculated Voltage Divider Formula. We can see it clearly if we think about the The formula of Voltage Divider Equation for finding the value of output voltage will be expressed as: Where, Vin = Input Voltage. Identify the input voltage (V in ) across the entire resistor network. It is like trying to assemble a stereo without the speakers, you can not, because there are some minimum components that must be. Feb 24, 2012 · A voltage divider is a fundamental circuit in the field of electronics which can produce a portion of its input voltage as an output. Given data: R 1 = 20Ω, R 2 = 40Ω and I T = 20 A. Use DigiKey's Voltage Divider conversion calculator to quickly and easily determine the output voltage of the divider circuit given the input voltage and resistor values. The voltage across a specific resistor in a voltage divider can be calculated using the following formula: Vout = Vin * (R2 / (R1 + R2)) Where: Vout is the output voltage across the resistor R2. + V R, Figure 2. Source Voltage, is the difference in Feb 10, 2020 · First, calculate total resistance: 4 + 2 + 6 = 12 Ω. The Voltage Divider Circuit is the simplest way of producing a lower voltage from a higher voltage, and is the basic operating mechanism of the potentiometer. We will demonstrate the expression of V 2. 67 mA. And the voltage is acted across these two resistors. Under Load. When two resistors are connected in series, through Kirchhoff’s Second Law, the potential difference across the power source is divided between them. Proof of Potential Divider Formula. Method One; Method Two; Another configuration that can provide high bias stability is voltage divider bias. Below you can see the formula that you need to use to calculate the resistors that you need in your circuit: Solving the formula above with Vin=5V, R1 The potential across resistor R1 is V1 and R2 is V2. Reference Aug 31, 2020 · Current Divider for 2 Resistors in Parallel With Current Source. Find out the current flowing through each resistor in the parallel circuit. This is known as the voltage divider formula, and it is a short-cut method for determining voltage drop in a series circuit without going through the current calculation (s) of Ohm's Law. 6V. 'R2' is '6k' ohms, divided by '2k' ohms, plus '6k' ohms. V1 −Vout R1 = Vout −V2 R2 V 1 − V o u t R 1 = V o u t − V 2 R 2. R 1 = Resistor closest to the input voltage (V in) R 2 = Resistor closest to May 14, 2024 · Formula of Voltage Divider Calculator 3 Resistors. This equation is the general voltage divider formula. 1% and one ±1%. 83V. If learning Ohm's law was like being introduced to the ABC's A voltage divider is a fundamental circuit used in the field of electronics. Electrical Engineering questions and answers. Here, three resistors (R1, R2, and R3) are connected in series with 100V source voltage. Problem 1P: Visit your local library (at school or home) and describe the extent Our expert help has broken down your problem into an easy-to-learn solution you can count on. Voltage Divider Formula: The voltage across any impedance in a series circuit can be found by multiplying the total voltage by the ratio of the target impedance to the total impedance. R2 = Resistor connected to ground. 3) Do the calculation again but this time for the second voltage divider. The applied voltage is _____. But this calculation assumed that the same current i flowed through both resistors R1 and R2. It will be incorrect if one tries to find using voltage divider by neglecting Question: • Pick up a couple of eighter of these 4 resistors: 1250, 30112, 120K1, 5110 By applying voltage divider formula: Vx = Vote (9 . Rule 1: The value can’t be too high. The first resistor, R 1 , has a resistance of 15 kΩ. Using V = IR for each, the values of R 1, R 2 and R 3 are 8 V, 4 V and 12 V. The voltages V2 and V3 are obtained in the same way, but with the corresponding resistor value. 1) Start by considering this as a single voltage divider with Vin, V2 as output, R1 and (R2+R3) 2) Assign R1 a nominal value (say 1K ohm) and work out (R2+R3) for the voltage you need. For R 1 and R 2 in series and V out is the Answers: A) I would like to request some help on how to solve it when v2 = 3. The voltage v is v i 1 R i 2 R. Feb 25, 2020 · Some call the voltage divider circuit that the potential dividers. What is a voltage divider? First, see in the simple circuit diagram below. We know that: A voltage divider is a simple circuit which turns a large voltage into a smaller one. We can draw the circuit in a variety of ways, but it should always be the same circuit. First of all, we express the equivalent resistance R eq of the R 2 //R L parallel association: We then apply the formula of the voltage divider (Equation 1) to the voltage divider R 1-R eq: A series circuit contains the following values of resistors: R1 5 510 Ω 2 5 680 Ω 3 5 390 Ω 4 5 750 Ω Assume a source voltage of 48 V. 07/01/2024 by ohmschool. It is termed as a potential divider. 7 kΩ and 3. The circuit below shows how the current in each of the resistors can be found. Post on: July 5, 2016. For 5 V: R = 1kOhm + 2kOhm = 3 kOhm -> I = U/R = 1. 7KΩ resistors cuts the voltage by 33%. (For V2 change R1 to R2, for V3 change R1 to R3). e. The voltage source still says, "My voltage is Vs. Vi- 5. According to the Ohm’s Law, voltage through an ideal conductor is equal to the current flowing through it. and some math gives you. What is the voltage divider formula? The formula to find the output voltage when two resistors are connected in series is V₂ = R₂/(R₁ + R₂) x V₁. The voltage across one of the resistors is 40 V. Instead of using a negative supply off of the emitter resistor, like two-supply emitter bias, this configuration returns the emitter resistor to ground and raises the base voltage. May 22, 2022 · Just as series circuits follow the voltage divider rule (voltage dividing in proportion to resistance), parallel circuits follow the current divider rule which states that current divides in reverse proportion to resistance (i. However, I have included it because a voltage divider between 2 resistors like that is a very commonly seen circuit and most people are familiar with the formula shown. Times the ratio of resistors. Resistor voltage divider design. Oct 9, 2019 · A voltage divider circuit will normally look like this in a circuit with a series of 2 resistors. The easiest to understand, and most basic form of a passive current divider network is that of two resistors connected together in parallel. Using the above equation, it can be understood that the total potential difference (V) is divided between the two resistors according the ratio of their resistances. R1 = Resistor connected to source. Consider the circuit below. Now, use the current to calculate the voltage drop across each resistor. Simplify your electronics projects with this user-friendly tool. Mar 24, 2022 · Actually I am not able to understand how the author arrived at this equation using voltage divider formula ? what I tried is , I combined the two 2R resistor connected to ground in series and wrote 4R then, it is in parallel with the single R resistor . Feb 24, 2012 · Current Divider Rule Definition: The current divider rule calculates the current through each parallel path in a circuit, based on the impedances of each path. zt sq qf zz xu yb my dn bo vy