#### The resistance of a wire is 'R' ohm. If it is melted and stretched to 'n' times its original length, its new resistance will be : Option 1) nR Option 2) Option 3) n2R Option 4)

As learnt in

Resistance formula -

- wherein

resistivity of material

Number of free electrons per unit volume.

According to the question, l2 = nl1

Option 1)

nR

Option 2)

Option 3)

n2R

Option 4)