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A circuit consists of five identical con...

A circuit consists of five identical conductors as shown in figure. The two similar conductors are added as indicated by the dotted lines. The ratio of resistances before and after addition will be-

A

`7//5`

B

`3//5`

C

`5//3`

D

`6//5`

Text Solution

Verified by Experts

The correct Answer is:
C
Before
`R_(eq) = 5 Omega`
After
Wheatstone’s bridge `R_(eq) = 1 + 1 + 1 = 3 Omega`
Then the ratio is `5//3`
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