Answer:
Energy used by television in 20 seconds = 3000 J
Explanation:
We have expression for power, P = Work / Time
Here we have power of television = 150 Watts
Time of working of television = 20 seconds.
We need to find energy it uses in 20 seconds, that is we need to find work done by electricity in 20 seconds.
Work done = Power x Time = 150 x 20 = 3000 J
Energy used by television in 20 seconds = 3000 J
