Quiz #1,#2 - EE6202 Electric Circuits Theory 2

Which of the following components stores energy in an electric field?

• Resistor

• Inductor

• Capacitor

• Diode

The equation for the charge stored in a capacitor is:

• C=qv

• q=Cv

• v=q/C

• v=Cq

The time constant for an RL circuit is given by:

• τ=RC

• τ=L/R

• τ=LC

• τ=R/L

What is the unit of capacitance?

• Ohm

• Henry

• Farad

• Volt

The voltage-current relationship for an inductor is:

• v=L(di/dt)

• v=C(di/dt)

• v=R(di/dt)

• v=L(dq/dt)

For a first-order RL circuit, what happens to the current when the switch is opened?

• It drops instantly to zero.

• It decreases exponentially.

• It increases exponentially.

• It stays constant.

In an RC circuit, what happens to the voltage across the capacitor over time during a natural response?

• It increases exponentially.

• It decreases exponentially.

• It remains constant.

• It fluctuates.

Which of the following is true for inductors?

• They act as a short circuit to DC.

• They store energy in the form of an electric field.

• They can change the current instantly.

• They act as an open circuit to AC.

What is the correct formula for the energy stored in a capacitor?

• w=1/2 Li^2

• w=1/2 Cv^2

• w=Cv^2

• w=Li^2

Which of the following describes the step response of an RL circuit with zero initial energy?

• The current starts from zero and increases to a steady value.

• The current starts from a steady value and decreases to zero.

• The voltage starts from zero and remains constant.

• The voltage increases exponentially.