MPSC PYQScienceElectricityenglish

50) The electric lamps of resistance 20 ohm , 30 ohm and 50 ohm are connected in series to each other and 100 V potential difference is given across to it for 10 seconds. What is electric power in a circuit ? 1) 10W 2) 20W 3) 30W 4) 40W

A.10W
B.20W
C.30W
D.40W

Correct answer: A

Source paper

Science: Electricity

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