56. For BJT amplifiers, the ________ gain typically ranges from a level just less than 1 to a level that may exceed 1000.
(a) voltage
(b) current
(c) impedance
(d) All of the above
57. The input impedance of a BJT amplifier is purely ________ in nature and can vary from a few ________ to ________.
(a) resistive, ohms, megohms
(b) capacitive, microfarads, farads
(c) inductive, millihenrys, henrys
(d) None of the above
58. The emitter-follower configuration has a ________ impedance at the input and a ________ impedance at the output.
(a) low, low
(b) low, high
(c) high, low
(d) high, high
59. The ________ configuration is frequently used for impedance matching.
(a) fixed-bias
(b) voltage-divider bias
(c) emitter-follower
(d) collector feedback
60. Which of the following conditions must be met to allow the use of the approximate approach in a voltage-divider bias configuration?
(a) re > 10R2
(b) RE > 10R2
(c) RE < 10R2
(d) re < 10R2
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