Equivalent resistance bet ween A and B for shown circuit :

Options

A. `(R)/(3) `
B. `(R)/(2) `
C. `(2R)/(5)`
D. `(3R)/(5)`

Answer

C

Explanation

`(2R)/(5)`
Equivalent circuit,

`therefore (1)/(R_(AB)) = (2)/(R) + (1)/(2R)`
`= (4 + 1)/(2R) = (5)/(2R)`
`(1)/(R_(AB) ) = (2R)/(5)`