Physics · PYQ NEET UG 2019(2)

The metre bridge shown is in balance position with \( \frac{P}{Q} = \frac{l_1}{l_2} \). If we now interchange the positions of galvanometer and cell, will the bridge work? If yes, what will be balance condition?

1. A
   yes, \( \frac{P}{Q} = \frac{l_1}{l_2} \)
2. B
   yes, \( \frac{P}{Q} = \frac{l_2 - l_1}{l_2 + l_1} \)
3. C
   no, no null point
4. D
   yes, \( \frac{P}{Q} = \frac{l_2}{l_1} \)