A Conductor of Radius R,length $\ell$ And Resistivity $\rho$ Has Resistance R $\frac { 1 } { 16 }$

Multiple Choice

A conductor of radius r,length $\ell$ and resistivity $\rho$ has resistance R.It is melted down and formed into a new conductor,also cylindrical,with one fourth the length of the original conductor.The resistance of the new conductor is

A) $\frac { 1 } { 16 }$ R
B) $\frac { 1 } { 4 }$ R
C) R
D) 4R
E) 16R