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Electronics and Communication Engineering - Analog Electronics

Exercise : Analog Electronics - Section 9
1.
Which of the following amplifier circuits has highest input impedance?
Circuit using BJT
Circuit using JFET
Circuit using MOSFET
Either (a) or (b)
Answer: Option
Explanation:
No answer description is available. Let's discuss.
2.
Which of the following device acts as an N-P-N and a P-N-P transistor connected base to base and emitter to controller?
UJT
SCR
Diac
Triac
Answer: Option
Explanation:
No answer description is available. Let's discuss.
3.
A differentiating amplifier has capacitor in the input path.
True
False
Answer: Option
Explanation:
No answer description is available. Let's discuss.
4.
Which of the following statement about TRIAC is incorrect?
It is not particularly suited to A.C. or mains power control
Any one of its main terminals can be used either as cathode or as anode
It can be triggered in response to both positive and negative gate terminals
None of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
5.
A half wave diode rectifier and full wave diode bridge rectifier both have an input frequency of 50 Hz. The frequencies of outputs respectively are
100 Hz and 50 Hz
50 Hz and 100 Hz
100 Hz each
50 Hz each
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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