A circuit with a resistance of 6 Omega has a fuse melts at 12 A. Can a voltage of 100 V be applied to the circuit without blowing the fuse?

1 Answer
Jan 26, 2016

Data:-

Resistance=R=6Omega

Voltage=V=100V

The fuse has capacity of 12A

Sol:-

If we apply voltage V across a resistor whose resistance is R then the current I flowing across it can be calculated by

I=V/R

Here we are applying voltage of 100V across a 6Omega resistor, therefore, the current flowing is

I=100/6=16.667 implies I=16.667A

Since, the fuse has capacity of 12A but the current flowing in the circuit is 16.667A therefore, the fuse will melt. Thus, the answer to this question is No.