Question

an electric kettle consumes 1 KW of electric power when operated at 220V. calculate the rating of fuse wire must be used for it

Answer 1

Here, power = P = 1 KW = 1000 W

Voltage = V = 220 V

Current = I = ?

Now, I = P/V = 1000/220 = 4.5 A

Now, rating of fuse wire must be slightly greater than 4.5 A i.e., 5 A.

Answer 2

Answer: current will be 4.5 A

Explanation:

Thus, the rating of fuse should be a little higher than the amount of current... Therefore, it is 5 A