In a meter bridge the point D is a neutral point (Fig 3.3). (a) The m

1.	In a meter bridge the point D is a neutral point (Fig 3.3). (a) The meter bridge can have no other neutral point for this set of resistances. (b) When the jockey contacts a point on meter wire left of D, current flows to B from the wire. (c) When the jockey contacts a point on the meter wire to the right of D, current flows from B to the wire through galvanometer. (d) When R is increased, the neutral point shifts to left.
Answer» (a), (c) (a) The meter bridge can have no other neutral point for this set of resistances. (c) When the jockey contacts a point on the meter wire to the right of D, current flows from B to the wire through galvanometer.

In a meter bridge the point D is a neutral point (Fig 3.3). (a) The meter bridge can have no other neutral point for this set of resistances. (b) When the jockey contacts a point on meter wire left of D, current flows to B from the wire. (c) When the jockey contacts a point on the meter wire to the right of D, current flows from B to the wire through galvanometer. (d) When R is increased, the neutral point shifts to left.

Answer»

(a), (c)

(a) The meter bridge can have no other neutral point for this set of resistances.

(c) When the jockey contacts a point on the meter wire to the right of D, current flows from B to the wire through galvanometer.