1000+ Analog Electronics Question Bank (Papers) with Answers Pdf - 3

Question: 11

Maximum possible conversion efficiency of a class-B amplifier is

(A) 25%

(B) 50%

(C) 75%

(D) 78.5%

Question: 12

In a differential amplifier, CMRR can be improved by using an increased

(A) emitter resistance

(B) collector resistance

(C) power supply voltages

(D) source resistance

Question: 13

The most commonly used transistor configuration for use as a switching device is

(A) common emitter configuration

(B) collector emitter shorted configuration

(C) common collector configuration

(D) common base configuration

Question: 14

The purpose of phase lag compensation is to

(A) increase the bandwidth

(B) reduce the unity gain frequency

(C) make the op-amp stable at very low values of gain

(D) make the op-amp stable at very high values of gain

Question: 15

To get higher cut off frequency in a BJT, base sheet resistance should be

(A) zero

(B) low

(C) high

(D) equal to cut-off frequency