An electric lamp marked 240V; 60W is left to operate for an hour. How much energy is generated by the filament?

By: |Published on: Nov 10|Categories: Physics JAMB| 0 comments

A. 3.86 x 105J
B. 3.56 x 105J
C. 1.80 x 104J
D. 2.16 x 105J

Correct Answer:

Option D = 2.16 x 105J

Explanation

Energy generated = power X time = 60w x 1h = 60 x 60 x 60 ws = 216000J = 2.16 x 105J

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