1.

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

Answer»

Solution :It is given that CURRENT drawn by ELECTRIC MOTOR `I=5A` the line voltage `V=220V` and TIME t=2h
`therefore`Power of the motor `P=VI=220V times 5A=1100W`
and the energy consumed `E=Pt=1100W times 2h=2200W h or 2.2kWh`


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