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Electronics and Communication Engineering - Analog Electronics

Exercise : Analog Electronics - Section 14
1.
In a Hartley oscillator the condition for sustained oscillations is . If there exists mutual inductance M between coils L1 and L2, then the above condition will get modified as hfe
Answer: Option
Explanation:
No answer description is available. Let's discuss.
2.
Figure shows current pulses of a class C power amplifier. The fundamental frequency of these pulses is
100 kHz
1000 kHz
10 kHz
1 kHz
Answer: Option
Explanation:
No answer description is available. Let's discuss.
3.
A FET has
very high input resistance
very low input resistance
high connection emitter junction
forward biased PN junction
Answer: Option
Explanation:
No answer description is available. Let's discuss.
4.
A TRIAC is a semiconductor device which acts as a
2 terminal unidirectional switch
2 terminal bidirectional switch
3 terminal bidirectional switch
4 terminal multidirectional switch
Answer: Option
Explanation:
No answer description is available. Let's discuss.
5.
The Clapp oscillator shown in figure will operate at
4.6 kHz
46 kHz
460 kHz
4600 kHz
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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