A piece of wire of resistance R is cut into five equal parts. These parts are then connected in parallel. If the equivalent resistance of this combination is R', then the ratio R/R' is:

Question

Philoid · Accepted Answer

The resistance of wire is R. This wire is cut into five equal pieces. The resistance of each piece of the wire will be R₁, R₂, R₃, R₄ and R₅ respectively. Now, when these five pieces are connected in parallel, the equivalent resistance for the combination is R’. We can write,

Thus, the correct answer is: Option (d)