Exercise-1
1.
A bulb uses 3000 J of energy in 50 s. Calculate its power.
(A) 60 W
(C) 3000 W
(B) 50 W
(D) zero
Answers
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Time (T) = 50sec
Work (W) = 3000J
Power (P) = ?
The formula P is :
P = W/T
= 3000/50
= 60
Ans :- (A) 60 W
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