# How To Figure Out Total Resistance In A Parallel Circuit

In a parallel circuit, the total resistance is less than the resistance of any individual resistor. This is because the current can flow through multiple paths, so each resistor has less resistance to the flow of current. The total resistance of a parallel circuit can be calculated using the following formula:

``` Rt = 1 / (1/R1 + 1/R2 + ... + 1/Rn) ```

where:

*

### Rt

is the total resistance of the parallel circuit *

,

, ...,

### Rn

are the resistances of the individual resistors

For example, if you have a parallel circuit with three resistors of 10 ohms, 20 ohms, and 30 ohms, the total resistance of the circuit would be:

``` Rt = 1 / (1/10 + 1/20 + 1/30) = 5 ohms ```

As you can see, the total resistance of the parallel circuit is less than the resistance of any of the individual resistors. This is because the current can flow through multiple paths, so each resistor has less resistance to the flow of current.

The total resistance of a parallel circuit is inversely proportional to the number of resistors in the circuit. This means that the more resistors you have in a parallel circuit, the lower the total resistance will be. This is because each resistor provides a path for current to flow, so the more resistors you have, the more paths there are for current to flow.

The total resistance of a parallel circuit is also inversely proportional to the square of the cross-sectional area of the conductors. This means that the larger the cross-sectional area of the conductors, the lower the total resistance will be. This is because a larger cross-sectional area allows more current to flow through the conductor, which reduces the resistance to the flow of current.

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