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An effective resistance R is obtained by...

An effective resistance R is obtained by connecting 'n' identical resistors each resistance 'r' in series.When connected in parallel,the effective resistance of the combination is

A

`n^2/R`

B

`r^2/R`

C

`Rr^2`

D

`Rn^2`

Text Solution

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The correct Answer is:
B
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