Transistors

81. The operating point is also called the ___________

Cut off point
Quiescent point
Saturation point
None of the above

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class="read-more button" href="https://exam.pscnotes.com/mcq/the-operating-point-is-also-called-the-___________/#more-46769">Detailed SolutionThe operating point is also called the ___________

83. For proper amplification by a transistor circuit, the operating point should be located at the ___________ of the d.c. load line

The end point
Middle
The maximum current point
None of the above

Detailed SolutionFor proper amplification by a

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transistor circuit, the operating point should be located at the ___________ of the d.c. load line

84. Frequencies above ___________ kHz are called radio frequencies

2
10
50
200

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85. The phase difference between the input and output voltages of a transistor connected in common collector arrangement is ___________

0°
90°
180°
270°

Detailed SolutionThe phase difference between the input and output voltages

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of a transistor connected in common collector arrangement is ___________

86. At series or parallel resonance, the circuit power factor is ___________

0%
5%
10%
8%

Detailed SolutionAt

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series or parallel resonance, the circuit power factor is ___________

87. The Q of a tuned amplifier is 50. If the resonant frequency for the amplifier is 1000kHZ, then bandwidth is ___________

10kHz
40 kHz
30 kHz
20 kHz

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for the amplifier is 1000kHZ, then
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bandwidth is ___________" class="read-more button" href="https://exam.pscnotes.com/mcq/the-q-of-a-tuned-amplifier-is-50-if-the-resonant-frequency-for-the-amplifier-is-1000khz-then-bandwidth-is-___________/#more-45881">Detailed SolutionThe Q of a tuned amplifier is 50. If the resonant frequency for the amplifier is 1000kHZ, then bandwidth is ___________

88. The Q of a tuned amplifier is generally ___________

Less than 5
Less than 10
More than 10
None of the above

Detailed

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SolutionThe Q of a tuned amplifier is generally ___________

89. In a npn transistor, ___________ are the minority carriers

free electrons
holes
donor ions
acceptor ions

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button" href="https://exam.pscnotes.com/mcq/in-a-npn-transistor-___________-are-the-minority-carriers/#more-45585">Detailed SolutionIn a npn transistor, ___________ are the minority carriers

90. The purpose of resistance in the emitter circuit of a transistor amplifier is to ___________

Limit the maximum emitter current
Provide base-emitter bias
Limit the change in emitter current
None of the above

Detailed SolutionThe purpose of resistance

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74.6 75.5c-23.5 6.3-42 24.9-48.3 48.6-11.4 42.9-11.4 132.3-11.4 132.3s0 89.4 11.4 132.3c6.3 23.7 24.8 41.5 48.3 47.8C117.2 448 288 448 288 448s170.8 0 213.4-11.5c23.5-6.3 42-24.2 48.3-47.8 11.4-42.9 11.4-132.3 11.4-132.3s0-89.4-11.4-132.3zm-317.5 213.5V175.2l142.7 81.2-142.7 81.2z"/> Subscribe on YouTube

in the emitter circuit of a transistor amplifier is to ___________
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