Question

a piece of wire is cut into 4 equal parts and pieces are bundled together by side by side to form a thicker wire compared to the original wire. the resistance of the bundle is?

Answer 1

Explanation:

R= rho × length/Area

new length = l/4

new area= 4A

new resistance= rho × new length/new area

new resistance = rho × length/16 Area

new resistance = R/16

Answer 2

Explanation:

the right answer is R/16