Power Amplifiers – 31

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31. You find that this amplifier only shows the negative alternation at the output. The possible trouble might be that ________.

(a) C₃ is shorted.
(b) BE₁ is open.
(c) BE₂ is open.
(d) R₁ is open.

Answer

Answer : (b)

Explanation

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

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Power Amplifiers - 30
5555555555 30. You find that there is no output signal. You measure the dc voltage of Q1 emitter and find it equal to 0 V. The trouble might be ________. (a) D1 is shorted. (b) D2 is shorted. (c) R1 is open. (d) no trouble, everything is normal.
Tags: trouble, find, shorted, power, amplifiers, output, open, 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, amplifier, electronics, engineering
Power Amplifiers – 1 - 2
Power Amplifiers » Exercise - 1 (a) (b) (c) (d) (a) (b) (c) (d) (a) (b) (c) (d) (a) (b) (c) (d) (a) (b) (c) (d)
Tags: power, amplifiers, electronics, engineering
Combinational Circuits - 182
5555555555182. Find the 2's complement of –1101102. (a) 1101002 (b) 1010102 (c) 0010012 (d) 0010102
Tags: find, electronics, engineering
Power Amplifiers - 13
5555555555 13. You have an oscilloscope across RL and it shows a zero signal voltage. The problem might be that ________. (a) C3 is open. (b) BE1 is open. (c) BE2 is open. (d) R1 is open.
Tags: open, power, amplifiers, electronics, engineering

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