Question

In a balanced Wheatstone bridge, current in the galvanometer is zero. It remains zero when :

[P] battery emf is increased [Q] All resistances are increased by 10 ohms

[R] all resistances are made five times [S] the battery and the galvanometer are interchanged
and why

Answer 1

Answer:

option R and S are correct

Answer 2

Answer:

• [R] all resistances are made five times.
• [S] the battery and the galvanometer are interchanged.