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In a meter bridge experiment null point ...

In a meter bridge experiment null point is obtained at 20 cm. from one end of the wire when resistance X is balanced against another resistance Y. If X`lt`Y, then where will be the new position of the null point from the same end, if one deicdes to balance a resistance of 4 X against Y

A

50 cm

B

80 cm

C

40 cm

D

70 cm

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