Home
Class 12
PHYSICS
Two identical capacitors A and B are cha...

Two identical capacitors A and B are charged to the same potential V and are connected in two circuits at t = 0 as shown in figure. The charge of the capacitors at a time t = CR are respectively -

A

VC,

B

`(VC)/(e ),VC`

C

`VC, (VC)/(e)`

D

`(VC)/(e),(VC)/(e)`

Text Solution

Verified by Experts

The correct Answer is:
B
(i) Time constant `(tau)=RC`
Time constant is the time in which charge on capacitor decreases to `(1)/(e )` times of its initial charge (steady state charge )
As D is in `FB implies "At t"=RC, Q=(CV)/(e)`
(ii) Diode is in RB. So no current will flow through the circuit hence charge on capacitor will not decay and it remains same, i.e. Q=CV .
Promotional Banner

Similar Questions

Explore conceptually related problems

Two identical capacitors eachof capacitance C are charged to the same potential V and are connected in two circuits (i) and (ii) at t=0 as shown. The charges on the capacitor at t=CR are

For the circuit shown in figure the charges on three capacitors, A, B and C are respectively

For the circuit shown in figure the charge on 4muF capacitor is

Two identical capacitor A and B, charged to the same potential 5V are connected in two different circuits as shown below at time t=0. t=CR is Q_(A) and Q_(B) respectively, then (Here e is the base of natureal logarithm)

In the circuit shown , the charges on the capacitors A and B are respectively

In the circuit shown in the figure, find charge on each capacitor.

Three capacitor A,B , and C , are connected in a circuit as shown in. What is the charge in muC on the capacitor B ? .

Two cellls, two resistance and two capacitors are connected as shown in figure. The charge on 2muF capacitors is