An electric heater draws a current of 10A from a 220v supply. What is the energy consumed (in commercial unit) if heater is used for 2 hours
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Answer:4.4kj
Explanation: E= H= I^2RT
=VIT ......[I^2R = VI]
= GIVEN
V=220, I= 10A , T=2Hrs
E= VIT
=220×10×2
4400 Joule
4400÷1000
4.4 kj
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