Answer / manish

POWER P = V * I = V * V/R = 100 * 100/(500*1000)
= 10000/500000 = 1/50 = 0.02 WATTS
GIVEN ENERGY = 1 KWH = 1000 WATT HOUR

TIME FOR WHICH BULB WILL GLOW
= (1000 WATT HOUR) / (0.02 WATT)
= 1000/0.02 HOURS
= 50000 HOURS

Answer / chegu

first have to find the I=V/R.V=100V AND R=500k
I=100/500,I=0.5 then find the power consumption
p=v*i,p=500w 1kwh=1000wh ,the power consumption of the bulb
is 500w so it will glow for 2hours according to my
calcution

Answer / k.prakashchandra

500 hours

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