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प्रश्न
A bulb of power 60 W is used for 12.5 h each day for 30 days. Calculate the electrical energy consumed.
उत्तर
Given, P = 60 W,
t = 12.5 × 30 = 375 h
Electric energy consumed = power × time
= 60 W × 375 h
= 22500 W
= `22500/1000`
= 22.5 kWh
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