Operational Amplifier Fundamentals – 29

29. The input impedance of a differential amplifier equals r′e times ….

(a) β
(b) RE
(c) RC
(d) 2β

Answer

Answer : (d)

Explanation

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

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Operational Amplifier Fundamentals - 28
Operational Amplifier » Exercise - 128. The differential voltage gain of a differential amplifier is equal to RC divided by .... (a) r′e (b) r′e/2 (c) 2 r′e (d) RE
Tags: r′e, amplifier, operational, differential, fundamentals, exercise, rc, electronics, engineering
Operational Amplifier Fundamentals - 5
Operational Amplifier » Exercise - 15. A differential amplifier ........... (a) is a part of an OP-amp (b) has one input and one output (c) has two outputs (d) a and c
Tags: amplifier, operational, fundamentals, exercise, differential, input, electronics, engineering
Operational Amplifier Fundamentals - 194
5555555555194. The feedback resistor has a value of ______ in the given circuit (a) 2 k (b) 10.5 k (c) 21 k (d) 40 k
Tags: operational, amplifier, fundamentals, electronics, engineering
Operational Amplifier Fundamentals - 11
Operational Amplifier » Exercise - 111. If ADM = 3500 and ACM = 0.35, the CMRR is .... (a) 1225 (b) 10,000 (c) 80 dB (d) b and c
Tags: operational, amplifier, fundamentals, exercise, electronics, engineering
Operational Amplifier Fundamentals - 190
5555555555190. The voltage gain is ______ for the amplifier in the given circuit. (a) –4 (b) –5 (c) –6 (d) –7
Tags: amplifier, operational, fundamentals, electronics, engineering

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