91. The complementary Darlington-connected transistor for a class B amplifier provides ________ output current and ________ output resistance.
(a) higher, higher
(b) higher, lower
(c) lower, lower
(d) lower, higher
92. The amount of power dissipated by the transistor is the ________ of that drawn from the dc supply (set by the bias point) and the amount delivered to the ac load.
(a) summation
(b) product
(c) difference
(d) average
93. ________ transistors can be used to build a class B amplifier.
(a) npn and pnp
(b) nMOS and pMOS
(c) Both npn and pnp or nMOS and pMOS
(d) None of the above
94. The highest efficiency is obtained in class B operation when the level of VL(p) is equal to ________.
(a) 0.25VCC
(b) 0.50VCC
(c) VCC
(d) 2VCC
95. The main feature(s) of a large-signal amplifier is (are) the ________.
(a) circuit’s power efficiency
(b) maximum amount of power that the circuit is capable of handling
(c) impedance matching to the output
(d) All of the above
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