Question

find the energy in Kwh consumed in 10h by four devices of power 500w each.

Answer 1

Power of one device = 500W

Power of four devices = 500×4

= 2000W

= 2000/1000

=2KW

Time = 10hrs

Power = Energy used / time taken

2KW = Energy used / 10

2KW×10hrs = Energy used

20KWhrs = Energy used

Hence energy used by four devices is 20KWhrs.

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