How To Work Out Resistance In Parallel Circuit

By | July 23, 2022



We’ve all heard about the importance of electrical circuits in our everyday lives, but what about understanding how to work out resistance in a parallel circuit? It’s not as complicated as it may sound, and with a little bit of effort, you can easily calculate the resistance of a parallel circuit.

Let’s start by defining a parallel circuit – it is any electrical circuit where two or more electrical components are connected together so that they share a common current. These components can be resistors, capacitors, inductors, or any other type of electric component. By working out the resistance of each component in a parallel circuit, you can then determine the overall circuit resistance.

To begin, identify the individual resistors in the parallel circuit and make sure you know their values. Then, find the total resistance of the circuit by using Ohm’s law, which states that the resistance of a parallel circuit is equal to the sum of its individual resistors divided by the total number of resistors.

Next, use Kirchhoff’s Current Law (KCL) to determine the current flow in the parallel circuit. This law states that the total current flowing through a parallel circuit is equal to the sum of the currents flowing through the individual branches. To do this, you’ll need to calculate the individual branch currents by dividing the total branch resistance by the resistance of each branch.

Finally, use Ohm’s law again to calculate the voltage across each resistor. This is done by multiplying the current flowing through each resistor by the resistance of each resistor. Once you’ve calculated each individual resistor’s voltage, you can then add them up to get the total voltage for the parallel circuit.

By using these simple steps, you can easily figure out the resistance of a parallel circuit. Understanding the basics of a parallel circuit can help you when troubleshooting electrical problems, designing a circuit board, or simply understanding the world of electricity. So next time you’re stuck trying to figure out the resistance of a parallel circuit, just remember – Ohm’s law, Kirchhoff’s Current Law, and total voltage calculation - and you’ll be able to get the answer you need in no time.


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