Electrical Transients

A time of 10 milliseconds is required for the current on a series RL dc circuit to reach 90% of its final steady state value. What is the time constant in seconds for the circuit?

The capacitor in a series RC circuit at steady state is:

A capacitor is charged by a dc source through a resistor of one megohm. If in one second, the potential difference across capacitor reaches 80% of its final value, calculate its capacitance.

A current of 20 A is flowing in an RL series circuit the instant before the switch is opened. If R = 10 Ω and L = 10 H, find the current after 3 seconds have elapsed.

At steady state in an RC circuit, the capacitance will act as __________.

A capacitor of 0.1 μF capacitance is charged to a potential difference between plates of 100 V and is discharged through a resistor of 1 megohm. Calculate the initial rate of decay of the capacitor voltage.

The double energy transient occur in the

The time constant of a series RC circuit is given by

In a loss-free RLC circuit, the transient current is

Transient current in an RLC circuit is oscillatory when

Transient current in an RLC circuit is oscillatory at which of the following circuit conditions?

How can the time constant of an RC circuit be increased?

A capacitance C is charged through a resistance R. The time constant of the circuit is

Double energy transients are produced in circuits consisting of which one?