Question

ii. An electric heater is rated 500 W, 200 V. If i
the heater is operated for 1 hour, calculate
the energy consumed (i) in kWh and (ii) in J.( solve properly)​

Answer 1

Answer:

1st is correct it is watt per hour

Answer 2

Answer:

E= 1,800,000J

or 1800 KJ

Explanation:

given :

p= 500W

v=200v

t=1hr

3600s

solution

The energy consumed by electric heater is given by

E=500×3600

E=1,800,000J

To convert to KJ

E=1,800,000/1000

E=1800KJ

hence the energy consumed is 1800KJ