Multistage Transistor Amplifiers – 1 – 2

6. The most desirable feature of transformer coupling is its :

(a) higher voltage gain
(b) wide frequency range
(c) ability to provide impedance matching between stages
(d) ability to eliminate hum from the output

ANSWER
Answer : (c)

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

7. A transformer coupled amplifier would give :

(a) maximum voltage gain
(b) impedance matching
(c) maximum current gain
(d) larger bandwidth

ANSWER
Answer : (b)

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

8. In multistage amplifiers, direct coupling is especially suited for amplifying :

(a) high frequency ac signals
(b) changes in dc voltages
(c) high-level voltages
(d) sinusoidal signals

ANSWER
Answer : (b)

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

9. The common-mode rejection ratio of an ideal diff-amp is :

(a) zero
(b) infinity
(c) less than unity
(d) greater than unity

ANSWER
Answer : (b)

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

10. A Darlington pair and an emitter follower have the same :

(a) input impedance
(b) current gain
(c) voltage gain
(d) power gain

ANSWER
Answer : (c)

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

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