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Transistor Characteristics - Questions and Answers

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11. The slope of the output characteristic curve of a common emitter NPN transistor gives
A. input impedance
B. output admittance
C. output impedance
D. current amplification factor
Explanation:
12. The unit of admittance is
A. ohm
B. volt
C. ampere
D. mho
Explanation:
13. The base-emitter voltage of 250 mV is applied to a transistor in common emitter configuration. If the base current is 150 µA, then input impedance is
A. 1.66 kΩ
B. 2 kΩ
C. 3 kΩ
D. 4 kΩ
Explanation:
14. A base emitter voltage of 200 mV is applied to a transistor in common emitter configuration. If the base current is 100 µA then the input impedance is
A. 2 kΩ
B. 1 kΩ
C. 0.5 kΩ
D. 4 kΩ
Explanation:
15. In a common base configuration α = 0.95 and IE = 1 mA. Then the value of IC is
A. 0.05 mA
B. 0.95 mA
C. 0.8 mA
D. 0.6 mA
Explanation:
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