Question

A camcorder has a power rating of 15 watts. If the output voltage from its battery is 5 volts, what current does it use?

Answer 1

Formula

W = E * I

Givens

E = 5 volts

W = 15 watts

I = ?

Solution

W = E * I

15 = 5 * I

15/5 = I

I = 3 amps. Answer