Question

A current of 0.1 A enters a Wheatstone bridge consisting of three arms of 10 ohm each and one of 11 ohm.What is the current in the galvanometer if it's resistance is 100 ohm ?

Answer 1

Answer:

Here, P=Q=S=R=10Ω

since

Q

P

=

R

S

=1, so it is balanced Wheatstone bridge and no current pass through galvanometer.

As all arm resistances are equal so its equivalent resistance is also 10Ω.

solution