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