Please solve this que.
Dear Student,
A metre bridge works on the principle of a balanced wheatstone bridge.
Let be the resistance per unit length of the metre bridge.
As per the circuit diagram,
Now the values of R and X are doubled and interchanged. Let the balancing point in this case is at a distance y from point A. Then,
As the bridge is balanced, the potential at A and B is equal. Hence no current flows through the galvanometer if the galvanometer and the battery are interchanged in the balanced condition.
Regards
A metre bridge works on the principle of a balanced wheatstone bridge.
Let be the resistance per unit length of the metre bridge.
As per the circuit diagram,
Now the values of R and X are doubled and interchanged. Let the balancing point in this case is at a distance y from point A. Then,
As the bridge is balanced, the potential at A and B is equal. Hence no current flows through the galvanometer if the galvanometer and the battery are interchanged in the balanced condition.
Regards