Question

an electric heater of power ratings 2000W, 220V is to obtained in an electric circuit of fuse rating of 5A. what is likely when the heater is switched on Explain​

Answer 1

Power(P)=2000w

Potential difference(V)=220v

we know that,

P=VI

=> I=P/V

I=2000/220

I=9.09ampere

So, current required is 9.09 ampere

But the circuit has current of 5 ampere

So, when we will switch on the heater, a large amount of heat will be released. The fuse wire will melt due to this excessive current and the circuit will be opened. Thus, no current will flow through the circuit. So, the heater will stop