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CBSE Class 10 Answered

An electric drill operates at potential difference 120 Volts and a draws current of 6.0 Amp.If takes 45 seconds  for the drill to make hole in a piece of wood, how much energy is used by the drill.? 
Asked by bcnandi | 10 May, 2019, 11:55: PM
answered-by-expert Expert Answer
Power = Voltage×Current = 120×6 = 720 W
energy = Power×time = 720×45 = 32400 J = 32.4 kJ
Answered by Thiyagarajan K | 11 May, 2019, 08:16: AM

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