Question

A resistance of 4 ohm is connected across one gap of a meter-bridge (the length of the wire is 100 cm), and an unknown resistance greater than 4 ohm is connected across the other gap. When these resistance are interchanged the balance points shifts by 40 cm. Neglecting any correction the unknown resistance is -

A) 9.3 ohm

B) 8.9 ohm

C) 3.9 ohm

D) 4.7 ohm

16

21

22

Legends

Not​

Answer 1

Answer:

options no b is correct

Explanation:

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