Transistors Archives - Page 7 of 10 - MCQ and Quiz for Exams

61. The leakage current in CE arrangement is ___________ that in CB arrangement

more than

less than

the same as

none of the above

Detailed SolutionThe leakage current in CE arrangement is ___________ that in CB arrangement

62. If the temperature increases, the value of VCE ___________

Remains the same

Is increased

Is decreased

None of the above

Detailed SolutionIf the temperature increases, the value of VCE ___________

63. The output impedance of a transistor is ___________

high

zero

low

very low

Detailed SolutionThe output impedance of a transistor is ___________

64. The input impedance of a transistor is ___________

high

low

very high

almost zero

Detailed SolutionThe input impedance of a transistor is ___________

65. The voltage gain of a transistor connected in common collector arrangement is ___________

equal to 1

more than 10

more than 100

less than 1

Detailed SolutionThe voltage gain of a transistor connected in common collector arrangement is ___________

66. For faithful amplification by a transistor circuit, the value of VBE should ___________ for a silicon transistor

Be zero

Be 0.01 V

Not fall below 0.7 V

Be between 0 V and 0.1 V

Detailed SolutionFor faithful amplification by a transistor circuit, the value of VBE should ___________ for a silicon transistor

67. $${{\text{I}}_{\text{C}}} = \beta \,{{\text{I}}_{\text{B}}}\, + \,……..$$

$${{ ext{I}}_{{ ext{CBO}}}}$$

$${{ ext{I}}_{ ext{C}}}$$

$${{ ext{I}}_{{ ext{CEO}}}}$$

$$lpha {{ ext{I}}_{ ext{E}}}$$

Detailed Solution$${{\text{I}}_{\text{C}}} = \beta \,{{\text{I}}_{\text{B}}}\, + \,……..$$

68. If the maximum collector current due to signal alone is 3 mA, then zero signal collector current should be at least equal to ___________

6 mA

2 mA

3 mA

1 mA

Detailed SolutionIf the maximum collector current due to signal alone is 3 mA, then zero signal collector current should be at least equal to ___________

69. In a tansistor, IC = 100 mA and IE = 100.2 m

The value of Ã is ___________ A. 100

50

about 1

200

Detailed SolutionIn a tansistor, IC = 100 mA and IE = 100.2 m

70. The input impedance of a transistor connected in ___________ arrangement is the highest

common emitter

common collector

common base

none of the above

Detailed SolutionThe input impedance of a transistor connected in ___________ arrangement is the highest

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