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Equivalent resistace across A and B in t...


Equivalent resistace across A and B in the given circuit if `r=10Omega,R=20Omega` is

A

`7Omega`

B

`14Omega`

C

`35Omega`

D

`(20)/(3)Omega`

Text Solution

Verified by Experts

The correct Answer is:
B
`R^(1)=r[(3R+r)/(3r+R)]`
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