Analog Electronics - Study Mode

[#356] Which of the following can be magnified by magnetic amplifiers
Correct Answer

(C) Power

[#357] An ideal value of input resistance of trans resistance amplifier is.
Correct Answer

(B) zero

[#358] The efficiency of a Class - B amplifier for a supply of V CC = 24 V and peak output voltages V L (P) = 22 V is
Correct Answer

(B) 72%

[#359] A multistage amplifier employs five stages each of which has a power gain of 30? The total gain of the amplifier in dB is . . . . . . . (log 10 30 = 1.477)
Correct Answer

(C) 73.85 dB

[#360] Which of the following indicates 2 nd harmonic distortion in power amplifier?
Correct Answer

(A) $$frac{{left| {{{ ext{A}}_2}} ight|}}{{left| {{{ ext{A}}_1}} ight|}}$$