Question

When two known resistances R and S are connected in the left and right gaps of a metre bridge, the balance point is found at a distance l1from zero end of the metre bridge wire. An unknown resistance X is now connected in parallel to the resistance S and the balance point is now found at distance l2 from the zero end of the metre bridge wire. Obtain a formula for X in terms of l1 ,l2 and S

Answer 1

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