Question

A circuit with a resistance of `3 Omega` has a fuse melts at `4 A`. Can a voltage of `16 V` be applied to the circuit without blowing the fuse?

Answer 1

No

Explanation:

`"Current"="Voltage"/"Resistance"`

`I=V/R`

`I=(16V)/(3Omega)=5.33A`

The current (`5.33A`) is large enough to melt the fuse, so that voltage will melt the fuse.