The meter bridge shown in the balance position with QP=l2l1. If we now interchange the positions of galvanometer and cell, will the bridge work? If yes, that will be balanced condition? 
Held on 30 Apr 2019 · Verified 9 Jul 2026.
yes, QP=I2+I1I2−I1
no, no null point
yes, QP=I1I2
yes, QP=I2I1
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