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In a metre bridge experiemnt, null point...

In a metre bridge experiemnt, null point is obtained at `20cm` from one end of the wire when resistance `X` is balanced against another resistnace `Y`. If `XltY`, then the new position of the null point from the same end,if one decides to balance a resistance of `4X`s against `Y` will be at

A

50 cm

B

80 cm

C

40 cm

D

70 cm

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A
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RESONANCE ENGLISH-DAILY PRACTICE PROBLEM-DPP No.38
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