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The potentiometer wire AB shown in figur...

The potentiometer wire `AB` shown in figure is `40 cm` long. Where the free end of the galvanometer should be connected on `AB` so that the galvanometer may show zero deflection?

Text Solution

Verified by Experts

The correct Answer is:
A, C
`8/12=l/(40-l)`
Solving this equation we get
`l=16cm`
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