An electric motor takes 5 ampere from
a 220 voltline. Determine the power of
the motor & the energy consumed in
2 hours ?
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Answered by
1
power of moter P = V * I = 5*220= 1110W
so, the energy consumption in 2 hr
E = 1110 * 2 / 1000 = 2.22 KWH Ans...
prachu82:
but solution is 792 × 10^4 j
my answer in KWH. for change to joule multiply
only time in second
okh bhiya...
thnx
it's my pleasure :-):-)
Answered by
0
Answer:
Electric current = 5 A
potential different = 220 V
Time = 2 x 60 x 60 = 7200
P = VI
220 x 5 V
=> 1100 w
Energy consumed by motor,
=> 1100 x 7200
=> 7.92 x 10^6 J
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