An Electric Motor Takes 5 A From A 220 V Line.Determine The Power of The Motor and The Energy Consumed In 2 hours.

Answer: The electric motor current (I) = 5 A.

The Voltage (V) = 220 V

The time taken = 2 h

= 2 x 60 x 60 

= 7200 s.

The power of the electric motor P = V × I

P= 220 x 5

P = 1100 Watts.

The energy consumed by the electric motor = Power x Time

P = 1100 x 7200

P = 7.92 x 106 J

Thus, the power of the electric motor = 1100 W.

The energy consumed by the electric motor = 7.92 x 106 J.