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प्रश्न
A torch bulb of 4.5 V, draws a current of 0.3 A. If the bulb is switched on for 10 minutes, calculate the energy released by the bulb.
संख्यात्मक
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उत्तर
P.D. = 4.5 V; current = 0.3 A; t = 10 min = 600 s
Energy released E = I × V × t
= 0.3 × 4.5 × 600
= 810 J
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