Electronics and Communication Engineering - Analog Electronics
Exercise : Analog Electronics - Section 1
- Analog Electronics - Section 11
- Analog Electronics - Section 21
- Analog Electronics - Section 20
- Analog Electronics - Section 19
- Analog Electronics - Section 18
- Analog Electronics - Section 17
- Analog Electronics - Section 16
- Analog Electronics - Section 15
- Analog Electronics - Section 14
- Analog Electronics - Section 13
- Analog Electronics - Section 12
- Analog Electronics - Section 1
- Analog Electronics - Section 10
- Analog Electronics - Section 9
- Analog Electronics - Section 8
- Analog Electronics - Section 7
- Analog Electronics - Section 6
- Analog Electronics - Section 5
- Analog Electronics - Section 4
- Analog Electronics - Section 3
- Analog Electronics - Section 2
41.
An exponential amplifier has diode in feedback path.
Answer: Option
Explanation:
It has resistance in feedback path.
42.
DC amplifiers have a tendency to be unstable.
Answer: Option
Explanation:
Due to drift.
43.
A half wave diode rectifier has a capacitance input filter. If input voltage is Vm sin ωt, PIV is
Answer: Option
Explanation:
Because capacitor charge is retained.
44.
An amplifier with loop gain Aβ will be more stable for value of Aβ as
Answer: Option
Explanation:
A feedback amplifier is stable if loop gain is less than unity. More less, more stable, hence β will be more stable.
45.
Study the circuit of figure and examine the following statements
- It is an active low pass finer.
- It is a second order filter.
- The change in gain is 40 dB/decade.
Answer: Option
Explanation:
The circuit is a second order active low pass filter for which gain is 40 dB/decade.
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