81. ________ can be applied to determine the response of the ac equivalent circuit.
(a) Mesh analysis
(b) Node analysis
(c) Thevenin’s theorem
(d) All of the above
82. In a voltage-divider bias configuration, there can be a measurable difference in the results for ________ if the condition ro 10RC is not satisfied.
(a) Zo
(b) Av
(c) Ai
(d) All of the above
83. The bypass capacitor in a common-emitter configuration ________ the voltage gain.
(a) significantly decreases
(b) significantly increases
(c) slightly increases
(d) slightly decreases
84. The output voltage and the input voltage are ________ for the common-emitter configuration.
(a) in phase
(b) 45º out of phase
(c) 90º out of phase
(d) 180º out of phase
85. The common-emitter configuration has a ________ level of input impedance with a ________ voltage and current gain.
(a) moderate, high
(b) low, moderate
(c) low, low
(d) high, low
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