Chapter 4

Question 1

What is the equation for discharging a capacitor?

Answer 1

Vc(t) = Vi.e^-t/RC

Question 2

What is the equation for charging a capacitor from a DC source through a resistor?

Answer 2

Vc(t) = Vs - Vs.e^-t/RC

Question 3

How do capacitances behave under steady state conditions?

Answer 3

As open circuits

Question 4

How do inductances behave under steady state conditions?

Answer 4

As short circuits

Question 5

In general, what is the equation for any circuit containing one inductance or capacitance?

Answer 5

First order ODE

Question 6

In general, what is the equation for circuits that contain two energy-storage elements?

Answer 6

Second order ODE

Question 7

How do you find the particular solution of a second order equation? (3)

Answer 7

Directly from the circuit

Replace L with short circuits) (Replace C with open circuits

Question 8

How do you find the complementary solution of a first order equation?

Answer 8

Solving the homogeneous equation