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 the balanced condition? [2019]

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Q.
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 the balanced condition [2019]

1 yes, $\frac{P}{Q} = \frac{l_{2} - l_{1}}{l_{2} + l_{1}}$

2 no, no null point

3 yes, $\frac{P}{Q} = \frac{l_{2}}{l_{1}}$

4 yes, $\frac{P}{Q} = \frac{l_{1}}{l_{2}}$

Ans.
(4)

Yes, the bridge will work. For a balanced condition, the current drawn from the battery will be zero. Also, $P \propto l_{1}$ and $Q \propto l_{2}$ . Therefore, the condition $\frac{P}{Q} = \frac{l_{1}}{l_{2}}$ will remain same after interchanging the cell and galvanometer.

Solution

Q.
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 the balanced condition [2019]

1 yes, $\frac{P}{Q} = \frac{l_{2} - l_{1}}{l_{2} + l_{1}}$

2 no, no null point

3 yes, $\frac{P}{Q} = \frac{l_{2}}{l_{1}}$

4 yes, $\frac{P}{Q} = \frac{l_{1}}{l_{2}}$

Ans.
(4)

Yes, the bridge will work. For a balanced condition, the current drawn from the battery will be zero. Also, $P \propto l_{1}$ and $Q \propto l_{2}$ . Therefore, the condition $\frac{P}{Q} = \frac{l_{1}}{l_{2}}$ will remain same after interchanging the cell and galvanometer.

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Solution

Q. The metre bridge shown is in balance position with PQ=l1l2. If we now interchange the positions of galvanometer and cell, will the bridge work If yes, what will be the balanced condition [2019]

1 yes, PQ=l2-l1l2+l1

2 no, no null point

3 yes, PQ=l2l1

4 yes, PQ=l1l2

Ans. (4) Yes, the bridge will work. For a balanced condition, the current drawn from the battery will be zero. Also, P∝l1 and Q∝l2. Therefore, the condition PQ=l1l2 will remain same after interchanging the cell and galvanometer.

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Q.
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 the balanced condition [2019]

1 yes, $\frac{P}{Q} = \frac{l_{2} - l_{1}}{l_{2} + l_{1}}$

3 yes, $\frac{P}{Q} = \frac{l_{2}}{l_{1}}$

4 yes, $\frac{P}{Q} = \frac{l_{1}}{l_{2}}$

Ans.
(4)

Yes, the bridge will work. For a balanced condition, the current drawn from the battery will be zero. Also, $P \propto l_{1}$ and $Q \propto l_{2}$ . Therefore, the condition $\frac{P}{Q} = \frac{l_{1}}{l_{2}}$ will remain same after interchanging the cell and galvanometer.