Transistors

71. The value of a of a transistor is ___________

more than 1
less than 1
1
none of the above

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button" href="https://exam.pscnotes.com/mcq/the-value-of-a-of-a-transistor-is-___________/#more-47807">Detailed SolutionThe value of a of a transistor is ___________

72. For germanium transistor amplifier, VCE should ___________ for faithful amplification

Be zero
Be 0.2 V
Not fall below 0.7 V
None of the above

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href="https://exam.pscnotes.com/mcq/for-germanium-transistor-amplifier-vce-should-___________-for-faithful-amplification/#more-47583">Detailed SolutionFor germanium transistor amplifier, VCE should ___________ for faithful amplification

73. At series resonance, the phase angle between applied voltage and circuit is ___________

90°
180°
0°
None of the above

Detailed SolutionAt series

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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
resonance, the phase angle between applied voltage and circuit is ___________

74. The Q of an LC circuit is given by ___________

2pfr x R
R / 2pfrL
2pfrL / R
R2/2pfrL

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button" href="https://exam.pscnotes.com/mcq/the-q-of-an-lc-circuit-is-given-by-___________/#more-47494">Detailed SolutionThe Q of an LC circuit is given by ___________

75. A resonant circuit contains ___________ elements

R and L only
R and C only
Only R
L and C

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elements" class="read-more button" href="https://exam.pscnotes.com/mcq/a-resonant-circuit-contains-___________-elements/#more-47442">Detailed SolutionA resonant circuit contains ___________ elements

76. The stabilisation of operating point in potential divider method is provided by ___________

RE consideration
RC consideration
VCC consideration
None of the above

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href="https://exam.pscnotes.com/mcq/the-stabilisation-of-operating-point-in-potential-divider-method-is-provided-by-___________/#more-47172">Detailed SolutionThe stabilisation of operating point in potential divider method is provided by ___________

77. Double tuned circuits are used in ___________ stages of a radio receiver

IF
Audio
Output
None of the above

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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 receiver" class="read-more button" href="https://exam.pscnotes.com/mcq/double-tuned-circuits-are-used-in-___________-stages-of-a-radio-receiver/#more-47145">Detailed SolutionDouble tuned circuits are used in ___________ stages of a radio receiver

78. The Q of a tuned circuit refers to the property of ___________

Sensitivity
Fidelity
Selectivity
None of the above

Detailed SolutionThe

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Q of a tuned circuit refers to the property of ___________

79. In a base resistor method, if the value of ß changes by 50, then collector current will change by a factor

25
50
100
200

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collector current will change by a factor" class="read-more button" href="https://exam.pscnotes.com/mcq/in-a-base-resistor-method-if-the-value-of-a%c2%9f-changes-by-50-then-collector-current-will-change-by-a-factor/#more-47076">Detailed SolutionIn a base resistor method, if the value of ß changes by 50, then collector current will change by a factor

80. The zero signal IC is generally ___________ mA in the initial stages of a transistor amplifier

4
1
3
More than 10

Detailed SolutionThe zero signal IC is generally

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___________ mA in the initial stages of a transistor amplifier

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