The band width, in a feedback amplifier.

A Remains unaffected
B Decreases by the same amount as the gain increase
C Increases by the same amount as the gain decrease
D Decreases by the same amount as the gain decrease

Correct Answer: Increases by the same amount as the gain decrease

The bandwidth is defined as the difference in the higher frequency to the input frequency and increase in the bandwidth leads to the noise and in a feedback amplifier increases by the same amount as the gain decreases.
Bissoy MCQ
#Control Systems #Control of the Effects of Disturbance Signals by Use of Feedback

Related Questions

Determine the resistance value and tolerance of a resistor that has the following color bands; first band is red, second band is red, third band is orange, and the fourth band is gold
A 220 Ohm, 5%
B 220 Ohm, 10%
C 22,000 Ohm, 5%
D 22, 000 Ohm, 10%
E None of the above
ABCD is a rectangle . If its lengthis decreased by 5 meter and the width is increased by 3 mete3r, the area de3creases by 2 meter, the area inceases by 67 square meter, What is the width width of ABCD?
A 9 meter
B 17 meter
C 18 meter
D 22 meter
Regenerative feedback implies feedback with
A Oscillations
B Step input
C Negative sign
D Positive sign
Voltage Series (feedback also called series-shunt feedback) results in
A Increase in both input & output impedances
B Decreases in both input & output impedances
C Increase in input impedance & decreases in output impedance
D Decrease in input impedance & increase in output impedance
সুপরিবাহী পদার্থে Valence Band এবং conduction band-
A আলাদা থাকে
B ওভারল্যাপ থাকে
C অনেক দূরে থাকে
D কোনটিই নয়
The forbidden energy gap between the valence band and conduction band will be least in case of
A Metals
B Semiconductors
C Insulators
D All of the above
A band-pass filter rejects all frequencies within a band between a lower and an upper critical frequency and passes all others.
A True
B False
The bandwidth of C-band satellite frequency band in U.S.
A 500 GHz
B 1000 GHz
C 1000 MHz
D 500 MHz
The current due to electron flow in conduction band is the hole current in valence band.
A Equal to
B Less than
C Greater than
D Any of the above
In a band and block brake, the ratio of tensions on tight side and slack side of the band is (where $$\mu $$ = Coefficient of friction between the blocks and the drum, $$\theta $$ = Semi-angle of each block subtending at the center of drum and n = Number of blocks)
A $$\frac{{{{\text{T}}_1}}}{{{{\text{T}}_2}}} = \mu \theta {\text{n}}$$
B $$\frac{{{{\text{T}}_1}}}{{{{\text{T}}_2}}} = {\left( {\frac{{1 - \mu \tan \theta }}{{1 + \mu \tan \theta }}} \right)^{\text{n}}}$$
C $$\frac{{{{\text{T}}_1}}}{{{{\text{T}}_2}}} = {\left( {\mu \theta } \right)^{\text{n}}}$$
D $$\frac{{{{\text{T}}_1}}}{{{{\text{T}}_2}}} = {\left( {\frac{{1 + \mu \tan \theta }}{{1 - \mu \tan \theta }}} \right)^{\text{n}}}$$

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