If fuses of 250 m A, 500 mA, 1 A, 5 A and 10 A were available, which one would be the most suitable for protecting an amplifier rated at 240 V, 180 W?

Question

Philoid · Accepted Answer

we know that,

I=p/v

So, by putting the values in the formula, we get

I= 180/240= 0.75A.

Fuse wire should must with stand only little more amount of current then 0.75A. so the required fuse is of 1A.