# How do errors in voltage and power relate?

##### 1 Answer

Feb 26, 2017

I am not sure what you meant to ask, but here's an example that may help...

#### Explanation:

Suppose you have a circuit with known resistance

So the power dissipated is proportional to the square of the voltage.

If you have a

Approximately

In general, for small values of

#(1+epsilon)^n ~~ 1+n epsilon#

So when raising to the