Electronics and Communication Engineering - Analog Electronics
Exercise : Analog Electronics - Section 6
- 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
31.
A full wave rectifier circuit using centre tapped transformer, the input frequency 50 Hz. The frequency of output is
Answer: Option
Explanation:
There are two output waves in one cycle of input wave.
32.
If the midband gain of an amplifier is 40 dB, the gain at half power frequency is
Answer: Option
Explanation:
Half power frequency is -3 dB frequency.
33.
It is desired to reduce distortion in an amplifier from 8% to 2% by using 5% negative feedback. The open and closed loop gains respectively are
Answer: Option
Explanation:
.
34.
An ideal op-amp requires
Answer: Option
Explanation:
An ideal Op-amp has identical transistors and hence does not require input offset voltage.
35.
The JFET in the circuit shown in figure has an IDSS = 10 mA and Vp = -5V. The value of the resistance Rs for a drain current IDS = 6.4 mA is
Answer: Option
Explanation:
VGS = - 1 V
IDS.RS = - VGS
.
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