A conductor of radius r, length and resistivity ρ 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) R.
B) R.
C)R.
D)4R.
E)16R.

Question

A conductor of radius r, length  and resistivity ρ 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) R. 
B) R. 
C)R. 
D)4R. 
E)16R.

Quizplus · Accepted Answer

The Answer of A conductor of radius r, length  and resistivity ρ 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) R. 
B) R. 
C)R. 
D)4R. 
E)16R.

A Conductor of Radius R, Length and Resistivity ρ