Electric iron of resistance 20 ohm draws a current of 5 ampere. Cal – InterviewSolution

1.	Electric iron of resistance 20 ohm draws a current of 5 ampere. Calculate the heat developed in 30 seconds . My solution H=I^2 Rt H= (5^2 × 20 × (30÷3600)) H= 500×1÷120 Is it correct ??
Answer» Electric iron of resistance 20 ohm draws a current of 5 ampere. Calculate the heat developed in 30 seconds . My solution H=I^2 Rt H= (5^2 × 20 × (30÷3600)) H= 500×1÷120 Is it correct ??

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