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The effective resistance between points ...

The effective resistance between points P and Q of the
electrical circuit shown in the figure is
(a) `(2Rr)/(R+r)`
(b)`(8R(R+r))/(3R +r)`
(c) `2r + 4R`
(d) `(5R)/2 + 2r` .
.

A

`2R//(R +r)`

B

`8R(R +r)//(3R+r)`

C

`2r +4R`

D

`5R//2 +2r`

Text Solution

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The correct Answer is:
A
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