1.

An electric motor takes 5 A from a 220 V line determine the power of the motor and the energy consumed in 2h.

Answer»

Here, I = 5A, V = 220 V, t = 2h = 7200 sec
Power, P = VI
= 220 × 5 = 1100 W
Energy consumed = P × t
= 1100 W × 7200 sec
= 7920000 J



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