Current Electricity Charging Discharging Of Capacitors Question 245

Question: In the following Wheatstone bridge $ P/Q=R/S $ . If key K is closed, then the galvanometer will show deflection

[CPMT 1999]

Options:

A) In left side

B) In right side

C) No deflection

D) In either side

Show Answer

Answer:

Correct Answer: D

Solution:

Pressing the key does not disturb current in all resistances as the bridge is balanced.

Therefore, deflection in the galvanometer in whatever direction it was, will stay.