Question
An appliance offers a resistance of 20 Ω. 220V is given across it for 10 minutes. What is the power consumption?
1452 kJ
1452 J
145.2 kJ
- 145.2 J
1452 kJ
1452 J
145.2 kJ
Hint:
Electric Power = 
The correct answer is: 1452 kJ
R = 20Ω
V = 220V
t = 10min = 600s
P =
= 
= 1452 KJ
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