Question

In a metre 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 < y, then where will be the new position of the null point from the same end, if one decides to balance a resistance of 4x against y ?

Answer 1

Answer:is answer 50 cm ???

Explanation:x/y=20/80

Therefore 4x=y

So the new balance point will be 50 cm