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A battery of emf E(0) = 12 V is connecte...

A battery of emf `E_(0) = 12 V` is connected across a long uniform wire having resistance `4 Omega-m`. The cell of small emfs `E_(1) = 2V` and `E_(2) = 4V` having interest resistance `2 Omega` and `6 Omega` respecitvely, are connected shown in the figure. If galvanometer shows deflection at the point N, the distance of point from the point A is equal to

A

`(1)/(6)m`

B

`(1)/(3)m`

C

`25cm`

D

`50cm`

Text Solution

Verified by Experts

The correct Answer is:
C
`4xxl(12)/(24)=(epsilon_(1)r_(2)-r_(1)epsilon_(2))/(r_(1)+r_(2))`
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