Question

A circuit with a resistance of `6 Omega` has a fuse melts at `5 A`. Can a voltage of `27 V` be applied to the circuit without blowing the fuse?

Answer 1

It should not blow the fuse.

Explanation:

`"Current" (I) = ("Voltage" (V))/("Resistance" (R))`

In this case
`color(white)("XXX")I = (27 V)/(6 Omega) = 4.5 (V/Omega)=4.5 A`(mperes).

If the fuse is rated as being able to handle up to `5 A`
this should be alright.