[amp_mcq option1=”common emitter” option2=”common base” option3=”common collector” option4=”none of the above” correct=”option3″]
Detailed SolutionThe most commonly used transistor arrangement is ___________ arrangement
Transistors
42. For proper operation of the transistor, its collector should have ___________
[amp_mcq option1=”Proper forward bias” option2=”Proper reverse bias” option3=”Very small size” option4=”None of the above” correct=”option1″]
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
[amp_mcq option1=”Not fall below 1 V” option2=”Be zero” option3=”Be 0.2 V” option4=”None of the above” correct=”option1″]
44. The base of a transistor is ___________ doped
[amp_mcq option1=”heavily” option2=”moderately” option3=”lightly” option4=”none of the above” correct=”option2″]
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 ___________
[amp_mcq option1=”VCE consideration” option2=”VBE consideration” option3=”IB consideration” option4=”None of the above” correct=”option1″]
46. In a parallel LC circuit, if the signal frequency is decreased below the resonant frequency, then ___________
[amp_mcq option1=”XL decreases and XC increases” option2=”XL increases and XC decreases” option3=”Line current becomes minimum” option4=”None of the above” correct=”option2″]
47. At series resonance, voltage across L is ___________ voltage across C
[amp_mcq option1=”Equal to but opposite in phase to” option2=”Equal to but in phase with” option3=”Greater than but in phase with” option4=”Less than but in phase with” correct=”option1″]
Detailed SolutionAt series resonance, voltage across L is ___________ voltage across C
48. The arrow in the symbol of a transistor indicates the direction of ___________
[amp_mcq option1=”electron current in the emitter” option2=”electron current in the collector” option3=”hole current in the emitter” option4=”donor ion current” correct=”option1″]
Detailed SolutionThe arrow in the symbol of a transistor indicates the direction of ___________
49. In a transistor ___________
[amp_mcq option1=”IC = IE + IB” option2=”IB = IC + IE” option3=”IE = IC – IB” option4=”IE = IC + IB” correct=”option1″]
50. A class C amplifier always drives ___________ load
[amp_mcq option1=”A pure resistive” option2=”A pure inductive” option3=”A pure capacitive” option4=”A resonant tank” correct=”option1″]
Detailed SolutionA class C amplifier always drives ___________ load