Question

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 the combination is R1 then the the ratio R/R1 7 is​

Answer 1

Explanation:

Resistance of each part will be R/5.

Equivalent resistance will be

1/R' = 5/R + 5/R + 5/R + 5/R + 5/R

So, R'=R/25

R'/R=1/25