The charge on a capacitor decrease `eta` time in time `t`, when it discharging through a circuit with a time constant` tau`

The charge on a capacitor becomes (1)/(n) times of its initial value in time t ,when it discharges through,a circuit with time constant T .The value of t is

A capacitor C is connected to two equal resistances as shown in the figure. Consider the following statemets i. At the time of charging of capacitor time constant of the circuit is 2CR ii. At the time of discharging of the capacitor the time constant of the circuit is CR iii. At the time of discharging of the capacitor the time constant of the circuit is 2CR iv At the time of charging of the capacitor the time constant of the circuit is 2CR

Charging and Discharging of Capacitor Questions | Time Constant

A capacitor of capacity 1muF is connected in a closed series circuit with a resistance or 10^(7) ohms, an open key and a cell of 2 V with negligible internal resistance : (i) When the key is switched on at time t=0, find, (a) The time constant for the circuit. (b) The charge on the capacitor at steady state. (c) Time taken to deposit charge equal to half of charge that will deposit at steady state. (ii) If after completely charging the capacitor, the cell is shorted by zero resistance at time t=0, find the charge on the capacitor at t=50 s. (Given : e^(-5)=6.73xx10^(-3), ln^(2)=0.693 )

A charged capacitor of capacitance 40 muF is discharged through a 50Omega resistance. Determine the time constant of the circuit.

A circuit consists of a source of a constant emf xi and a resistance R amd a capacitor with capacitance C connected in series. The internal resistance of the source is negligible. At a moment t = 0 the capacitance of the capacitor is abruply decreased eta -fold. FInd the current flowing through the circuit as a function of time t .

The charge on a capacitor plate in a circuit, as a function of time, is shown in the figure. What is the value of current at t=4s ?

The time constant of charging of the circuit shown in figure is

A parallel-plate capacitor is filled with a delectric meterial having resistivity (rho) and dielectric constant K.The capcitor is charged and disconnected from the charging source. The capacitor is slowly discharged through the dielectric.Show that the time constant of the discharge is independent of all gepmetrical parameters like the plate area or separation between the plates. Find this time constant.