36. Class ________ amplifiers are normally operated in a push-pull configuration in order to produce an output that is a replica of the input.
(a) A
(b) B
(c) C
(d) AB
37. For BJT power transistors, the collector terminal is always connected to the transistor’s case ________.
(a) for easy circuit connection.
(b) to prevent shorts.
(c) because the collector terminal is the critical terminal for heat dissipation.
(d) because the collector terminal is located nearest the case.
38. A class B amplifier operates in the linear region for ________.
(a) slightly more than 180° of the input cycle.
(b) 360° of the input cycle.
(c) slightly less than 180° of the input cycle.
(d) much less than 180° of the input cycle.
39. Quiescent power is the power dissipation of a transistor ________.
(a) with no signal input.
(b) with no load.
(c) under full load.
(d) along the dc load line.
40. In a class AB amplifier, if the VBE drops are not matched to the diode drops or if the diodes are not in thermal equilibrium with the transistors, this can result in ________.
(a) a current mirror.
(b) diode separation.
(c) crossover distortion.
(d) thermal runaway.
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