The metre bridge shown is in balance position with 
. If we now interchange the positions of galvanometer and cell, will the bridge work? If yes, what will be balance condition?
Text Solution
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According to given condition for the balanced bridge connection, the relation between P, Q, l 1 and l 2 is 
Now, if we interchange the position, the relation for P, Q, l 1 and l 2 will be
As we can see from the above relation that on interchanging galvanometer and battery positions, the balance condition remains unchanged.
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