How To Find The Value Of An Unknown Resistor In A Parallel Circuit

By | February 24, 2023



If you’re an electronics hobbyist or DIYer, figuring out the value of an unknown resistor in a parallel circuit is an essential skill. Knowing how to calculate the resistance of a parallel circuit can help you solve many electrical problems and design more effective circuits.

Fortunately, calculating the value of an unknown resistor in a parallel circuit isn’t as difficult as it sounds. The first step is to identify all of the known resistors. Once you know the values of the known resistors, you need to find the total resistance for the entire circuit. To do this, you can use Ohm’s law: Rtotal = 1 / (1/R1 + 1/R2 + …). This equation allows you to easily calculate the total resistance of your circuit.

Once you have the total resistance, you’ll need to use Kirchhoff’s current law to determine the current in the circuit. This law states that the total current entering a node must equal the total current leaving the node. By applying this rule to the circuit, you can determine the current in each resistor.

Now that you know the current in the circuit, you can calculate the value of the unknown resistor. All you need to do is take the total resistance minus the other resistors’ resistance, and then divide it by the current. Using this formula, you can easily calculate the value of the unknown resistor.

To recap, calculating the value of an unknown resistor in a parallel circuit requires three steps: identify the known resistors, calculate the total resistance, and then use Kirchhoff’s current law to determine the current in the circuit. From there, you can figure out the value of the unknown resistor by simple formula.

This process might seem complicated, but with a bit of practice, you’ll be able to calculate the value of an unknown resistor in a parallel circuit with ease. It’s a useful skill to have if you work with electronics or you’re just into DIY projects, so start practicing now!


Find The Value Of Unknown Resistor X In Following Circuit If No Cur Flows Through Section Brainly

Find The Value Of Unknown Resistor X In Following Circuit If No Cur Flows Through Section Brainly


One Unknown Resistance

One Unknown Resistance


Wheatstone Bridge Series Amp Parallel Resistances The University Of

Wheatstone Bridge Series Amp Parallel Resistances The University Of


Solved In The Shown Wheatstone Bridge Circuit Ifthe Is Balanced And Values Of Ri 150 Q Rz 300 2 Ry 80 What Kn Value Unknown

Solved In The Shown Wheatstone Bridge Circuit Ifthe Is Balanced And Values Of Ri 150 Q Rz 300 2 Ry 80 What Kn Value Unknown


Find The Value Of Unknown Resistance R 3 In Above Circuit Using Kirchhoff S Voltage Law N

Find The Value Of Unknown Resistance R 3 In Above Circuit Using Kirchhoff S Voltage Law N


What Is The Value Of Unknown Resistor R In Fig 1 16 If Voltage Drop Across 500 Ω 2 5 Volts All Resistances Are Ohm Sarthaks Econnect

What Is The Value Of Unknown Resistor R In Fig 1 16 If Voltage Drop Across 500 Ω 2 5 Volts All Resistances Are Ohm Sarthaks Econnect


Measurement Of Resistance Using Potentiometer Circuit Globe

Measurement Of Resistance Using Potentiometer Circuit Globe


How To Solve Parallel Circuits 10 Steps With Pictures Wikihow

How To Solve Parallel Circuits 10 Steps With Pictures Wikihow


Solved 4 The Series Parallel Circuit Is Supplied By A 25v Chegg Com

Solved 4 The Series Parallel Circuit Is Supplied By A 25v Chegg Com


The Circuit Below Consists Of A 6 Ω And 15 Resistor Connected In Parallel An Unknown R Series Mathsgee Q Expert Verified Instant Answers

The Circuit Below Consists Of A 6 Ω And 15 Resistor Connected In Parallel An Unknown R Series Mathsgee Q Expert Verified Instant Answers


Voltage Dividers Ultimate Electronics Book

Voltage Dividers Ultimate Electronics Book


How To Solve Parallel Circuits 10 Steps With Pictures Wikihow

How To Solve Parallel Circuits 10 Steps With Pictures Wikihow


Simplified Formulas For Parallel Circuit Resistance Calculations Inst Tools

Simplified Formulas For Parallel Circuit Resistance Calculations Inst Tools


In The Circuit Shown Below Find Cur Resistor Resistance R And Unknown Emf E Homework Study Com

In The Circuit Shown Below Find Cur Resistor Resistance R And Unknown Emf E Homework Study Com


Parallel Resistor Calculator

Parallel Resistor Calculator


Solved The Figure Below Shows A Wheatstone Bridge Circuit To Precisely Measure An Unknown Resistance R By Varying Rvar Until Ammeter Reads Zero Cur And Is Said

Solved The Figure Below Shows A Wheatstone Bridge Circuit To Precisely Measure An Unknown Resistance R By Varying Rvar Until Ammeter Reads Zero Cur And Is Said


Troubleshooting Series And Parallel Circuits Electronics Textbook

Troubleshooting Series And Parallel Circuits Electronics Textbook


Simplified Formulas For Parallel Circuit Resistance Calculations Inst Tools

Simplified Formulas For Parallel Circuit Resistance Calculations Inst Tools


Lesson Explainer Analyzing Combination Circuits Nagwa

Lesson Explainer Analyzing Combination Circuits Nagwa