# A charge of #40 C# passes through a circuit every #8 s#. If the circuit can generate #16 W# of power, what is the circuit's resistance?

##### 1 Answer

Sep 11, 2016

#### Explanation:

One of the formulas for electric power is

Also, electric current is defined as the flow of charge.

Mathematically, this is expressed as

Let's substitute this expression of

Then, let's rearrange the equation to express it in terms of

Now, let's substitute the values for electric charge, time and electric power: