Power Amplifiers – 96

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96. A form of class A amplifier having maximum efficiency of ________ uses a transformer to couple the output signal to the load.

(a) 90%
(b) 78.5%
(c) 50%
(d) 25%

Answer

Answer : (c)

Explanation

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

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Power Amplifiers - 76
555555555576. By how much does the output signal vary for a class AB power amplifier? (a) 360º (b) 180º (c) Between 180º and 360º (d) Less than 180º
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555555555566. How many transistors must be used in a class B power amplifier to obtain the output for the full cycle of the signal? (a) 0 (b) 1 (c) 2 (d) 3
Tags: power, amplifiers, class, amplifier, output, signal, electronics, engineering
Power Amplifiers - 77
555555555577. Which of the following is (are) power amplifiers? (a) Class A (b) Class B or AB (c) Class C or D (d) All of the above
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Power Amplifiers - 74
555555555574. Which of the power amplifiers has the lowest overall efficiency? (a) Class A (b) Class B or AB (c) Class C (d) Class D
Tags: class, power, amplifiers, efficiency, electronics, engineering
Power Amplifiers - 34
555555555534. In practice, the efficiency of a capacitively coupled class A amplifier is about ________%. (a) 25 (b) 40 (c) 70 (d) 10
Tags: power, amplifiers, efficiency, class, amplifier, electronics, engineering

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