Physics, asked by sharmaharpartap, 3 months ago

electric iron of power 1.5 KW is used for 45 minutes to press clothes. Calculate the electrical energy consumed in
i) kilowatt hour​

Answers

Answered by Priyavand
1

Answer:

a) P = w/t ∴ Eelectrical energy W = P × t P = 1.5 kW t = 30 minute = 30/60 =1/2 hr 1.5 × 1/2 = 0.75 kwh (b) 1 kWh = 3.6 × 106 J ∴ 75 kWh =0.75 × 3.6 × 106 = 2.700 × 106 = 2.7 × 106

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