##### Transient Response

1. Study the transient response of a series RC circuit.
2. Understand the time constant concept by using fluctuating signal.

###### Solved Example: 9885-01

During capacitor charging, the voltage actually rises to _________ percent of its _________ value.

###### Solved Example: 9885-02

At certain current, the energy stored in iron cored coil is 1000 J and its copper loss is 2000 W. The time constant is:

###### Solved Example: 9885-03

A 10-$\mu$F capacitor in series with a 1-M$\Omega$ resistor is connected across a 100-V DC supply. The initial rate of rise of voltage across the capacitor is:

###### Solved Example: 9885-04

What is the expression for the current in the R-C circuit?

###### Solved Example: 9885-05

Which circuit will not always produce any transients?

###### Solved Example: 9885-06

A coil having a resistance of 8 $\Omega$ and inductance of 2 H is switched across a 48 V DC supply. The time constant of the circuit and the final value of the current in the circuit, respectively are:

###### Solved Example: 9885-07

Zero initial conditions in transient analysis mean that the system is:

###### Solved Example: 9885-08

In an R-L circuit connected to an alternating sinusoidal voltage, size of transient current primarily depends on:

A resistor and a capacitor are connected in series to a 10 V DC supply through a switch. The switch is closed at t = 0, and the capacitor voltage is found to cross 0 V at t = 0.4$\tau$, where $\tau$ is the circuit time constant. The absolute value of percentage change required in the initial capacitor voltage if the zero crossing has to happen at t = 0.2$\tau$ is: