Top 80+ Solved Electronic Circuits 1 MCQ Questions Answer
Q. STC networks can be classified into two categories: low-pass (LP) and high-pass (HP). Then which of the following is true?
a. hp network passes dc and low frequencies and attenuate high frequency and opposite for lp network
b. lp network passes dc and low frequencies and attenuate high frequency and opposite for hp network
c. hp network passes dc and high frequencies and attenuate low frequency and opposite for lp network
d. lp network passes low frequencies only and attenuate high frequency and opposite for hp network
Q. The signal whose waveform is not effected by a linear circuit is
a. triangular waveform signal
b. rectangular waveform signal
c. sine/cosine wave signal
d. sawtooth waveform signal
Q. Which of the following is not a classification of amplifiers on the basis of their frequency response?
a. capacitively coupled amplifier
b. direct coupled amplifier
c. bandpass amplifier
d. none of the mentioned
Q. General representation of the frequency response curve is called
a. bode plot
b. miller plot
c. thevenin plot
d. bandwidth plot
Q. Under what condition can the circuit shown be called a compensated attenuator.
a. c1r1 = c2r2
b. c1r2 = c2r1
c. c1c2 = r1r2
d. r1 = 0
Q. Which of the following is true?
a. coupling capacitors causes the gain to fall off at high frequencies
b. internal capacitor of a device causes the gain to fall off at low frequencies
c. all of the mentioned
d. none of the mentioned
Q. Which of the following is true?
a. monolithic ic amplifiers are directly coupled or dc amplifiers
b. televisions and radios use tuned amplifiers
c. audio amplifiers have coupling capacitor amplifier
d. all of the mentioned
Q. During high frequency applications of a B.J.T., which parasitic capacitors arise between the base and the emitter?
a. cje and cb
b. ccs
c. cb
d. ccs and cb
Q. During high frequency applications of a B.J.T., which parasitic capacitors arise between the collector and the emitter?
a. no capacitor arises
b. ccs
c. cb
d. ccs and cb
Q. Which parasitic capacitors do not affect the frequency response of the C.E. stage, of the B.J.T.?
a. cje and cb
b. ccs and cµ
c. cb and cµ
d. no parasitic capacitor gets deactivated
Q. Which parasitic capacitors don’t affect the frequency response of the C.B. stage of the B.J.T.?
a. none of the parasitic capacitances
b. all the parasitic capacitances
c. some of the coupling capacitors
d. ccs and cb
Q. Which parasitic capacitors don’t affect the frequency response of the C.C. stage of the B.J.T.?
a. ccs
b. ccs and cb
c. cb
d. ccs and cµ
Q. If the transconductance of the B.J.T increases, the transit frequency
a. increases
b. decreases
c. doesn’t get affected
d. doubles
Q. If the total capacitance between the base and the emitter increases by a factor of 2, the transit frequency
a. reduces by 2
b. increases by 2
c. reduces by 4
d. increases by 4