Questions
A (100 W, 200 V) bulb is connected to a 160 volts supply. The power consumption would be
a
64 W
b
80 W
c
100 W
d
125 W
detailed solution
Correct option is A
Resistance of the bulbR=V2P=(200)2100=400ΩNow power consumedP= (source voltage) 2R=(160)2400=64WTalk to our academic expert!
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