Question

A circuit with a resistance of `6 Omega` has a fuse that melts at `8 A`. Can a voltage of `28 V` be applied to the circuit without blowing the fuse?

Answer 1

Yes,a voltage of 28v can be applied to the circuit without blowing fuse since current flowing through fuse is 4.67A where as rating is 8A.

Explanation:

From Ohm's law,

`V=IR`

`I=V/R`

Given that, `V=28v and R=6 ohm`

`=>I=28/6`

`=>I=4.66666A <8A`