engineering recuitment UPCL AE (E&M) 2021 Mock Test Utilization of Electrical Energy

Two light bulbs are connected in series across a 120 V battery. Bulb 1 uses 40 W of power and Bulb 2 uses 20 W of power. If bulb 1 is alone connected to the 120 V source, then it will consume

1

90 W

2

80 W

3

60 W

4

180 W

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