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)
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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)
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Answer:
1st is correct it is watt per hour
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