Power Amplifiers – Exercise – 1

41. You have an application for a power amplifier to operate on FM radio frequencies. The most likely choice would be a ________ amplifier.

(a) class A
(b) class B
(c) class C
(d) class AB

Answer
Answer : (c)
Explanation
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42. The least efficient amplifier among all classes is ________.

(a) class B.
(b) class A.
(c) class AB.
(d) class C.

Answer
Answer : (b)
Explanation
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43. Which amplifier is commonly used as a frequency multiplier?

(a) class A
(b) class B
(c) class C
(d) all of the above

Answer
Answer : (c)
Explanation
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44. A class A amplifier has a voltage gain of 30 and a current gain of 25. What is the power gain?

(a) 30
(b) 25
(c) 1.2
(d) 744

Answer
Answer : (d)
Explanation
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45. Nota

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