Ten identical electric bulbs, each rated 220 V, 50 W are used in parallel on 220 V line for 10 hours per day in a month of 30 days .T he electric energy consumed in kilo watt hours is :
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a
1500
b
15000
c
15
d
150
answer is C.
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Detailed Solution
Energy consumed = Pt = (50 W) 10hoursday(30 days).= 15000 W hours = 15 kWh