Transistors

41. The most commonly used transistor arrangement is ___________ arrangement

common emitter
common base
common collector
none of the above

Detailed SolutionThe most commonly used transistor arrangement is ___________ arrangement

42. For proper operation of the transistor, its collector should have ___________

Proper forward bias
Proper reverse bias
Very small size
None of the above

Detailed SolutionFor proper operation of the transistor, its collector should have ___________

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

Not fall below 1 V
Be zero
Be 0.2 V
None of the above

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

44. The base of a transistor is ___________ doped

heavily
moderately
lightly
none of the above

Detailed SolutionThe base of a transistor is ___________ doped

45. In the design of a biasing circuit, the value of collector load RC is determined by ___________

VCE consideration
VBE consideration
IB consideration
None of the above

Detailed SolutionIn the design of a biasing circuit, the value of collector load RC is determined by ___________

46. In a parallel LC circuit, if the signal frequency is decreased below the resonant frequency, then ___________

XL decreases and XC increases
XL increases and XC decreases
Line current becomes minimum
None of the above

Detailed SolutionIn a parallel LC circuit, if the signal frequency is decreased below the resonant frequency, then ___________

47. At series resonance, voltage across L is ___________ voltage across C

Equal to but opposite in phase to
Equal to but in phase with
Greater than but in phase with
Less than but in phase with

Detailed SolutionAt series resonance, voltage across L is ___________ voltage across C

48. The arrow in the symbol of a transistor indicates the direction of ___________

electron current in the emitter
electron current in the collector
hole current in the emitter
donor ion current

Detailed SolutionThe arrow in the symbol of a transistor indicates the direction of ___________

49. In a transistor ___________

IC = IE + IB
IB = IC + IE
IE = IC - IB
IE = IC + IB

Detailed SolutionIn a transistor ___________

50. A class C amplifier always drives ___________ load

A pure resistive
A pure inductive
A pure capacitive
A resonant tank

Detailed SolutionA class C amplifier always drives ___________ load

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