1. A circuit contains resistors, capacitors, and inductors connected in series and parallel to a
single source. Which of the following components in the circuit will absorb or supply
instantaneous power?
a. Resistors
b. Capacitors
c. Inductors
d. The source
e. All of the Above
2. If the current in a circuit is nonzero, the instantaneous power absorbed by a resistor,
a. could be positive or negative
b. is always positive
c. is always negative
d. is constant
e. None of the above
3. If the current in a circuit is nonzero, the average power absorbed by a resistor,
a. Could be positive or negative
b. is always positive
c. is always negative
d. is constant
e. None of the above
4. In sinusoidal steady-state analysis, a circuit is found to have a Thevenin voltage, $V_{th}$, and
a Thevenin impedance, $Z_{th}$. For maximum average power transfer to a load impedance
($Z_L = R_L + jX_L$), which of the following choices should be chosen for $Z_L$?
a. $Z_L = Z_{th}$
b. $Z_L = Z^*_{th}$
c. $Z_L = R_{th}$
d. $Z_L = jX_L$
e. None of the above
