Analog Circuits Mock Test 6

10%

Question 1 of 10

1. For the system shown gain with feedback is 200. Find feedback factor.

It can be any real number

0.0041

0.41

Question 1 of 10

Question 2 of 10

2. Provided a cascade multistage amplifier network, their pole frequencies obtained are f1=10Mhz, f2=12Mhz, f3=20Mhz, f4=16Mhz. What is the approximate higher cutoff frequency of the cascaded network?

3.4 Mhz

8 Mhz

5 Mhz

6 Mhz

Question 2 of 10

Question 3 of 10

3. What is the output of a class B amplifier for sinusoidal input?

Half-sinusoidal

Sinusoidal with higher frequency

Square wave

Sinusoidal amplifier

Question 3 of 10

Question 4 of 10

4. The problem in which output signal is not an exact reproduction of output signal in the amplifier is collectively called __________

Distortion

Phase error

Biasing error

Thermal runaway

Question 4 of 10

Question 5 of 10

5. THD is a measure of ____________

Total amount of amplitude distortion

Amount of output power

Total amount of distortion

Amount of harmonic content present in a signal

Question 5 of 10

Question 6 of 10

6. Consider the circuit shown.

What is the type of sampling observed?

Shunt-Shunt feedback

Series-Shunt feedback

Shunt-Series feedback

Series-Series feedback

Question 6 of 10

Question 7 of 10

7. Darlington amplifier is an emitter follower.

False

True

Question 7 of 10

Question 8 of 10

8. What is a cascade amplifier?

A cascade of two CB amplifiers

A cascade of CB and CC amplifiers

A cascade of CE and CB amplifiers

A cascade of two CE amplifiers

Question 8 of 10

Question 9 of 10

9. 6 similar amplifiers are cascaded, with lower cut-off frequency 100Hz. Bandwidth is B1=10 kHz. What is the higher cut-off frequency of the cascaded network?

4000 Hz

1667 Hz

3642 Hz

3000 Hz

Question 9 of 10

Question 10 of 10

10. Relative change of gain of feedback amplifier is 0.05. Also, loop gain is 9. Find desensitivity?

1/9

Question 10 of 10