Current Electricity Ques 109
109. The metre bridge shown is in balance position with $\frac{P}{Q}=\frac{l_1}{l_2}$. If we now interchange the position of galvanometer and cell, will the bridge work? If yes, what will be balance condition?
[NEET Odisha 2019]
(a) yes, $\frac{P}{Q}=\frac{l_1}{l_2}$
(b) yes, $\frac{P}{Q}=\frac{l_2-l_1}{l_2+l_1}$
(c) no, no null point
(d) yes, $\frac{P}{Q}=\frac{l_2}{l_1}$
Show Answer
Answer:
Correct Answer: 109.(a)
Solution:
- (a) For Balanced Bridge
$ \frac{P}{Q}=\frac{l_1}{l_2} $
For balanced bridge (finally)
On interchanging galvanometer and battery positions, the balance condition remains unchanged.
BETA
