analog electronics MCQs – Page 3

Practise focused analog electronics questions with marked answers for exam preparation and subject revision.

analog electronics Mcqs
41. In a transistor leakage current mainly depends on__________?
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A. size of emitter

B. temperature

C. doping of base

D. rating of transistor

42. Negative feedback in an amplifier____________?
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A. Increases noise

B. Reduces gain

C. Increase frequency &phase distortion

D. Reduces bandwidth

43. When a transistor is connected in common emitter mode, it with have__________?
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A. negligible input resistance and high output resistance

B. low input resistance as well as output resistance

C. medium input resistance and high output resistance

D. high input resistance and low output resistance

44. An amplifier using an opamp with slew rate SR=1v/sec has a gain of 40db.if this amplifier has to faithfully amplify sinusoidal signals from dc to 20 KHz without introducing any slew-rate induced distortion, then the input signal level must not exceed________?
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A. 795 mV

B. 795mV

C. 39.5mV

D. 395mV

45. An ideal OP-AMP is an ideal___________?
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A. voltage controlled current source

B. Current controlled Current source

C. Current controlled voltage source

D. Voltage controlled voltage source

46. Which of the following is not associated with a p-n junction?
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A. junction capacitance

B. depletion capacitance

C. channel length modulation

D. charge storage capacitance

47. Thermal runaway is not possible in FET because as the temperature of FET increases_________________?
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A. the transconductance increases

B. the drain current increases

C. the mobility decreases

D. none of the above