# Ohm’s Law in Series Circuits

As we all know that a series circuit has two or more than two series resistors. We can apply * Ohm’s law* in series circuits by solving the series resistors first and then by applying the formulas for series circuits.

## Resistors in series

Two or more resistors are simply added in series to obtain the equivalent resistance.

The general formula is:

*R _{eq} = R_{1} + R_{2 }+ R_{3}+ … + R_{n}*

For two resistors:

**R _{eq} = R_{1} + R_{2}**

In such case, the resistor R in formulas of Ohm’s law will be replaced by * R_{eq}*.

Let’s do a simple example for learning it:

A 12-volt battery power two series resistors of 5-ohm and 30-ohm. Find the current flowing through the series circuit.

So a current of 0.342 A will flow through it.