78.1k views
2 votes
camcorder has a power rating of 14 watts. If the output voltage from its battery is 3 volts, what current does it use?

User DaveAlden
by
7.8k points

1 Answer

4 votes
Power rating tells you the amount of electricity a particular device like a camcorder needs. The power, voltage and current are all related using the equation: P = IV.

Therefore,

P = IV
I = P/V = 14 watts/3 volts = 4.67 A

Thus, the current must be 4.67 Amperes for the camcorder.
User OTUser
by
7.4k points