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In a potentiometer experiment for measur...

In a potentiometer experiment for measuring the emf of cell, the null point is at 480 cm when we have a `400Omega` resistor in series with the cell and galvanometer . If the series resistances is reduced to half, the null point will be at

A

120 cm

B

240 cm

C

480 cm

D

600 cm

Text Solution

Verified by Experts

The correct Answer is:
C
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