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Question
When an electric lamp is connected to 12 V battery, it draws a current of 0.5 A. The power of the lamp is:
(a) 0.5 W
(b) 6 W
(c) 12 W
(d) 24 W
(a) 0.5 W
(b) 6 W
(c) 12 W
(d) 24 W
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Solution
(b) 6 W
Power, P = VI = 12 V x 0.5 A = 6 W
Power, P = VI = 12 V x 0.5 A = 6 W
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