# How does power change with voltage?

##### 1 Answer

Power

So the power will increase proportionally with the voltage if I is constant.

This is because power is defined as energy consumed per second as stated in the equation:

Voltage is defined as the amount of energy per charge:

Current is defined as the the flow of charge per unit time:

So when we multiply

We can also find Power from voltage and resistance because we know from Ohm's law that: