Amplifier circuits
Switching circuits
Rectifier circuits
None of the above
Answer is Right!
Answer is Wrong!
Detailed SolutionThe base resistor method is generally used in
Transistors
52. The point of intersection of d.c. and a.c. load lines represents ___________
Operating point
Current gain
Voltage gain
None of the above
Answer is Right!
Answer is Wrong!
Detailed SolutionThe point of intersection of d.c. and a.c. load lines represents ___________
53. In parallel resonance, there is ___________
Both voltage and current amplification
Voltage amplifications
Current amplification
None of the above
Answer is Right!
Answer is Wrong!
Detailed SolutionIn parallel resonance, there is ___________
54. The voltage gain of a tuned amplifier is ___________ at resonant frequency
Minimum
Maximum
Half-way between maximum and minimum
Zero
Answer is Right!
Answer is Wrong!
Detailed SolutionThe voltage gain of a tuned amplifier is ___________ at resonant frequency
55. In a transistor if à = 100 and collector current is 10 mA, then IE is ___________
100 mA
10.1 mA
110 mA
none of the above
Answer is Right!
Answer is Wrong!
Detailed SolutionIn a transistor if à = 100 and collector current is 10 mA, then IE is ___________
56. The value of à for a transistor is generally ___________
1
less than 1
between 20 and 500
above 500
Answer is Right!
Answer is Wrong!
Detailed SolutionThe value of à for a transistor is generally ___________
57. The power gain in a transistor connected in ___________ arrangement is the highest
common emitter
common base
common collector
none of the above
Answer is Right!
Answer is Wrong!
Detailed SolutionThe power gain in a transistor connected in ___________ arrangement is the highest
58. In the above question, what are the values of cut-off frequencies?
140 kHz , 60 kHz
1020 kHz , 980 kHz
1030 kHz , 970 kHz
None of the above
Answer is Right!
Answer is Wrong!
Detailed SolutionIn the above question, what are the values of cut-off frequencies?
59. For good stabilsation in voltage divider bias, the current I1 flowing through R1 and R2 should be equal to or greater than
10 IB
3 IB
2 IB
4 IB
Answer is Right!
Answer is Wrong!
60. At the base emitter junctions of a transistor, one finds ___________
a reverse bias
a wide depletion layer
low resistance
none of the above
Answer is Right!
Answer is Wrong!
Detailed SolutionAt the base emitter junctions of a transistor, one finds ___________