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 the ratioR/R is?​

Answer 1

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 - 25

Explanation:

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Answer 2

Answer is 25 .

Explanation:

Let Length is R,

suppose each cutted part is R*

then R*=Length ÷5

= R÷5

For parallel combination

1/R'= 1/R1 +1/R2 + 1/R3 + 1/R4 + 1/R5

R' = R÷25

R÷R' = 25

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