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 this combination is R' then find the ratio R/R'.​

Answer 1

Explanation:

R'=5/R

so ratio=R/R'

=R/5/R

=1/5

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Answer 2

Answer:

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