Question

A device operating at a potential difference of 1.5 volts draws a current of 0.20 ampere. How much energy is used by the device in 6.0 seconds?

Answer 1

1,8 J

Explanation:

Energy = power x time `E= P xx t`
Power = potential difference x current = `P= V xx I`
`E= V xx I xxt = 1,5 V xx 0,2 A xx 6 s = 1,8 W xx s = 1,8 J`