Top 80+ Solved Electronic Circuits 1 MCQ Questions Answer
Q. From the given circuit, using a silicon BJT, what is the value of VCEQ?
a. 7 v
b. 0.7 v
c. 6.83 v
d. 7.17 v
Q. From the given circuit, using a silicon BJT, what is the value of VBC?
a. 6.13 v
b. -6.13 v
c. 7 v
d. -7 v
Q. From the given circuit, using silicon BJT, what is the value of the saturation collector current?
a. 5 ma
b. 5.36 ma
c. 5.45 ma
d. 10.9 ma
Q. Consider the circuit shown. VDS=3 V. If IDS=2mA, find VDD to bias circuit.
a. -30v
b. 30v
c. 33v
d. any value of voltage less than 12 v
Q. To bias a e-MOSFET
a. we can use either gate bias or a voltage divider bias circuit
b. we can use either gate bias or a self bias circuit
c. we can use either self bias or a voltage divider bias circuit
d. we can use any type of bias circuit
Q. The values of h-parameters of a transistor in CE arrangement are arrangement.
a. same as for cb
b. same as for cc
c. different from that in cb
d. similar to no
Q. If the load resistance of a C.E. stage increases by a factor of 2, what happens to the high frequency response?
a. the 3 db roll off occurs faster
b. the 3 db roll off occurs later
c. the input pole shifts towards origin
d. the input pole becomes infinite
Q. Ignoring early effect, if C1 is the total capacitance tied to the emitter, what is the input pole of a simple C.B. stage?
a. 1/gm * c1
b. 2/gm * c1
c. gm * c1
d. gm * 2c1
Q. For the difference amplifier which of the following is true?
a. it responds to the difference between the two signals and rejects the signal that are common to both the signal
b. it responds to the signal that are common to the two inputs only
c. it has a low value of input resistance
d. the efficacy of the amplifier is measured by the degree of its differential signal to the preference of the common mode signal
Q. The problem with the single operational difference amplifier is its
a. high input resistance
b. low input resistance
c. low output resistance
d. none of the mentioned
Q. Consider a voltage amplifier having a frequency response of the low-pass STC type with a dc gain of 60 dB and a 3-dB frequency of 1000 Hz. Then the gain db at
a. f = 10 hz is 55 db
b. f = 10 khz is 45 db
c. f = 100 khz is 25 db
d. f = 1mhz is 0 db