Question

for an electric iron of 1Kw rating at 200V, fuse of how much capacity is to be used?​

Answer 1

Answer:

a fuse of capacity of 5 A (but slightly more)

Explanation:

first we have to calculate the current required by this iron to operate

ie

P=VI

V=200 V

P=1000 W

I=P/V

=1000/200

=5 A

therefore a fuse of 5 A is enough

(though actually it should be slightly greater than 5A )

Hope this helps.