Home / Amplifiers – 1 – 3

Amplifiers – 1 – 3

11. In class–A amplifier, the output current flows for :

(a) a part of the cycle or the input signal
(b) the full cycle of the input signal
(c) half the cycle of the input signal
(d) 3/4th of the cycle of the input signal

Answer
Answer : (b)

Explanation
No answer description available for this question. Let us discuss.

12. When an amplifier is provided with current series feedback, its :

(a) input impedance increases and output impedance decreases
(b) input and output impedances both decrease
(c) input impedance decreases and output impedance increases
(d) input and output impedances both increase

Answer
Answer : (d)

Explanation
No answer description available for this question. Let us discuss.

13. A differential amplifier, amplifies :

(a) the mathematically differentiates the average of the voltages on the two input lines
(b) the differentiates the input waveform on one line when the other line is grounded
(c) the difference of voltages between the two input lines
(d) the differentiates the sum of the two input waveforms

Answer
Answer : (c)

Explanation
No answer description available for this question. Let us discuss.

14. The common collector amplifier is also known as :

(a) collector follower
(b) base follower
(c) emitter follower
(d) source follower

Answer
Answer : (c)

Explanation
No answer description available for this question. Let us discuss.

15. The upper cutoff frequency of an RC coupled amplifier mainly depends upon :

(a) coupling capacitor
(b) emitter bypass capacitor
(c) output capacitance of signal source
(d) inter-electrode capacitance and stray shunt capacitance

Answer
Answer : (d)

Explanation
No answer description available for this question. Let us discuss.

1 2 3 4 5 6 7 8 9 10

General Knowledge Books

Be a Part of the New & Next

MCQs fb  MCQs G+

Share the Knowledge

MORE INFORMATION
GATE Total InfoGATE 2019 BooksFree Notes
IES Total InfoIES 2019 BooksFree Mock tests
JAM Total InfoJAM 2019 BooksEngg Diploma
PSUs Total InfoM Tech Total InfoUGC NET Total Info
Copy Protected by Chetan's WP-Copyprotect.