# Calculate Series Parallel Circuit Resistance

In this article, we will discuss how to calculate the resistance of a series-parallel circuit. We will start by reviewing the basics of series and parallel circuits, and then we will show you how to calculate the total resistance of a series-parallel circuit.

## Series Circuits In a series circuit, the current is the same through all of the components. This means that the total resistance of the circuit is equal to the sum of the individual resistances of the components.

For example, if you have a circuit with three resistors, each with a resistance of 10 ohms, the total resistance of the circuit would be 30 ohms.

## Parallel Circuits In a parallel circuit, the voltage is the same across all of the components. This means that the total current in the circuit is equal to the sum of the currents through the individual components.

For example, if you have a circuit with three resistors, each with a resistance of 10 ohms, the total current in the circuit would be 3 amps.

## Series-Parallel Circuits A series-parallel circuit is a circuit that contains both series and parallel components. To calculate the total resistance of a series-parallel circuit, we can use the following formula:

``` R = R1 + R2 + ... + Rn + (1/R1 + 1/R2 + ... + 1/Rn)-1 ```

where:

* R is the total resistance of the circuit * R1, R2, ..., Rn are the resistances of the individual components

For example, if you have a circuit with two resistors in series, each with a resistance of 10 ohms, and two resistors in parallel, each with a resistance of 20 ohms, the total resistance of the circuit would be:

``` R = 10 + 10 + (1/20 + 1/20)-1 = 30 ohms ```

## Conclusion In this article, we have discussed how to calculate the resistance of a series-parallel circuit. We have reviewed the basics of series and parallel circuits, and we have shown you how to use the formula for calculating the total resistance of a series-parallel circuit.

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