How To Find Missing Resistance In A Series Parallel Circuit

By | July 7, 2022



Most of us can agree that when it comes to electricity and circuits, things can get complicated. Series Parallel Circuits are no exception. Just when you think you understand how they work, you run into problems such as how to find missing resistance in a series-parallel circuit.

If you’ve been in this situation before, don’t worry - you’re definitely not alone! There are some basic techniques that can make finding the missing resistance much easier. Let’s take a closer look at what you need to do.

First, you need to identify the currents in each branch of the circuit. This can be done by measuring the voltage drops across each branch. Once you have the current for each branch, you can use Ohm’s Law to calculate the total resistance for each branch. The sum of the resistances for each branch will give you the total resistance for the circuit.

Now, if you know the total current for the entire circuit, you can calculate the individual branch resistance by dividing the total resistance by the number of branches. This will give you the resistance of each branch.

However, if you don’t know the total current, there is still an easy way to find the missing resistance. Start by rearranging the circuit so that the resistors are connected in series. Then, applying Ohm’s Law to each branch will yield the total resistance for the entire circuit. Subsequently, you can calculate the individual branch resistance by subtracting the resistance of each resistor from the total resistance of the circuit.

Ultimately, by following these steps, you can find the missing resistance in a series parallel circuit. It may take a bit of time, but it’s worth it knowing that you now understand how the circuit works and why you are measuring the resistance in the first place. Plus, understanding this electrical concept could lead to more successful DIY projects in the future. Keep on learning and experimenting!


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