Question

A circuit with a resistance of `3 Omega` has a fuse with a capacity of `4 A`. Can a voltage of `12 V` be applied to the circuit without blowing the fuse?

Answer 1

Current= voltage divided by Resistance 12/3=4 amperes..

Explanation:

Fuse will blow at 4 amps. This is a just rated amps for the fuse..It may not blow at rated amps but it is risky as any slight increase will blow fuse.