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प्रश्न
An electric fan runs from the 230 V mains. The current flowing through it is 0.4 A. At what rate is electrical energy transferred by the fan?
योग
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उत्तर
Rate of electrical energy transfer = Power consumed
∴ Rate of electrical energy transfer,
P = VI
= `230 V xx0 .4 A`
= 92 W
= 92 J/s
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