Current Electricity and Electrical InstrumentHard
Question
In the given circuit, with steady current, the potential difference across the capacitor must be
Options
A.V
B.V/2
C.V/3
D.2V/3
Solution
In steady state conditions, no current will flow through the capacitor C. Current in the outer circuit,

Potential difference between A and B
VA - V + V + iR = VB
∴ VB - VA = iR =
Note : In this problem charge stored in the capacitor can also be asked, which is equal to q = C
with positive charge on B side and negative on A side because VB > VA.

Potential difference between A and B
VA - V + V + iR = VB
∴ VB - VA = iR =
Note : In this problem charge stored in the capacitor can also be asked, which is equal to q = C
with positive charge on B side and negative on A side because VB > VA. Create a free account to view solution
View Solution FreeTopic: Current Electricity and Electrical Instrument·Practice all Current Electricity and Electrical Instrument questions
More Current Electricity and Electrical Instrument Questions
The current i in the circuit of figure is -...In the potentiometer experiment if deflection in galvanometer is measured zero then current will become zero in : -...A cell supplies a current of 0.9 A through a 2Ω resistor and a current of 0.3 A through a 7Ω resistor. The int...In the adjacent circuit, AB is a potentiometer wire of length 40 cm and resistance per unit length 50Ω/m. As shown ...A galvanometer has a resistance of 20Ω and reads full - scale when 0.2 V is applied across it. To convert it into a...