Question

A camcorder has a power rating of 14 watts. If the output voltage from its battery is 2 volts, what current does it use?

Answer 1

Power = (voltage) x (current)

If the camcorder is USING 14 watts of electrical power right now, then . . .

14 watts = (2 volts) x (current)

Divide each side by (2 volts):

Current = (14 watts) / (2 volts)

Current = (14 V-A) / (2 V)

Current = 7 Amperes