A capacitor charges from a cell through a resistance. The time constant is `tau`. In what time will the capacitor collect `10%` of the final charge?

A capacitor is charged and then made to discharged through a resistance. The time constant is tau . In what time will the potential difference across the capacitor decreases by 10% ?

When a capacitor discharges through a resistance R, the time constant is tau and the maximum current in the circuit is i_0 . Then,

When a capacitor discharges through a resistance R, the time constant is tau and the maximum current in the circuit is i_0 . Then,

A capacitor is charged from a battery through a resistance of 1 M Omega . If it takes 1 sec for the charge to reach one-half of its final value then capacity of capacitor is

A charged capacitor is discharged through a resistance. The time constant of the circuit is eta . Then the value of time constant for the power dissipated through the resistance will be