Question

An electric oven of 2kW power rating is operated in a domestic electric circuit (220V) that has a current rating of 5A. What result do you expect? Explain.

Answer 1

P = 2KW

V = 220V

I = 5A

Here,

Oven's power is 2Kw = 2000W

But the power supplied is = P = VI

2000 = 220*5

2000 ≠ 1100

∴ overloading will be caused and the circuit will catch fire.

Answer 2

ANSWER:

P max = 2000 W

V = 220 V

I max = 5 A

P= VI

I= P/V

I=2000/220

I=100/11

I=9.09 A

Since the current is greater than the current rating( I max) the oven is going to short circuit.

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