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In the arrangement shown in figure when ...

In the arrangement shown in figure when the switch `S_2` is open, the galvanometer shown no deflection for `l=L//2`. When the switch `S_2` is closed, the galvanometer shown no deflection for `l=5L//12`. The internal resistance `(r)` of `6V` cell, and the emf `E` of the other battery are respectively

A

`3Omega,8V`

B

`2Omega,12V`

C

`2Omega,24V`

D

`3Omega,12V`

Text Solution

Verified by Experts

The correct Answer is:
B
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