Question

QUE S T 1 o N S
1.
2.
What determines the rate at which energy is delivered by a current?
An electric motor takes 5 A from a 220 V line. Determine the power of
the motor and the energy consumed in 2 h.
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Answer 1

1. Power

2. Given => I = 5 A

V = 220 V

T = 2 h = 7200 s

Power = V × I

= 220 V × 5 A

= 1100 W

Heat Energy = V × I × t

= 220 V × 5 A × 7200 s

= 7920000 J (ans)