1) What does an arrow indicate in the below drawn graph of small signal operation executed by MOSFET?
a. Active Region
b. Cut-off Region
c. Saturation Region
d. Breakdown Region
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Answer
Explanation
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ANSWER: Saturation Region
Explanation:
No explanation is available for this question!
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2) Which among the below mentioned implementation strategies is/are precise to obtain an AC equivalent circuit of MOSFET?
A. Replacement of all capacitors by open circuits
B. Replacement of all capacitors by short circuits
C. Setting of all DC voltages to zero
D. Setting of all DC voltages to unity
a. A & C
b. B & C
c. B & D
d. A & D
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Answer
Explanation
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ANSWER: B & C
Explanation:
No explanation is available for this question!
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3) The value of transconductance decreases in simplified low frequency equivalent circuit of n-channel MOSFET due to increase in the value of _______
a. Source resistance
b. Load resistance
c. Both a and b
d. None of the above
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Answer
Explanation
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ANSWER: Source resistance
Explanation:
No explanation is available for this question!
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4) What is the effect of MOSFET biasing in the saturation region especially while representing the internal resistances and capacitances in n-channel E-MOSFET configuration?
a. Channel gets pinched off at the drain by increasing the value of C gd
b. Channel gets pinched off at the source by increasing the value of C gd
c. Channel gets pinched off at the drain by decreasing the value of C gd upto zero
d. Channel gets pinched off at the source by decreasing the value of C gd
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Answer
Explanation
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ANSWER: Channel gets pinched off at the drain by decreasing the value of Cgd upto zero
Explanation:
No explanation is available for this question!
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5) Which among the following are specifically the advantages of bipolar design technology?
A. High input resistance at low frequencies
B. Zero input bias current
C. High voltage gain
D. High value of transconductance
a. A & B
b. A & C
c. B & D
d. C & D
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Answer
Explanation
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ANSWER: C & D
Explanation:
No explanation is available for this question!
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6) Which condition is applicable for a body to be more positive than source in a small signal equivalent circuit of N-type MOSFET inclusive of body effect?
a. V bs > 0
b. V bs < 0
c. V bs = 0
d. None of the above
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Answer
Explanation
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ANSWER: Vbs > 0
Explanation:
No explanation is available for this question!
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7) What should be the value of transconductance, if N-channel E-MOSFET is biased in saturation region with the conduction parameter (k) = 0.836 mA/ V2 and drain current (ID) = 1.5 mA?
a. 1 mA/V
b. 1.5 mA/V
c. 2.23 mA/V
d. 4.23 mA/V
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Answer
Explanation
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ANSWER: 2.23 mA/V
Explanation:
No explanation is available for this question!
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8) What would happen if 180° phase shifted signal between input voltage (Vi) and drain-to-source voltage (VGS) will be passed through the output coupling capacitor during the operation of MOSFET as an amplifier?
a. DC value will be reduced to unity
b. DC value will be reduced to zero
c. DC value will be reduced to infinity
d. None of the above
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Answer
Explanation
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ANSWER: DC value will be reduced to zero
Explanation:
No explanation is available for this question!
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9) Which among the below stated consequences occur in the negative half-cycle during the operation of MOSFET as an amplifier?
a. Variation in V GS sinusoidally below V GSQ
b. Variation in I D sinusoidally below I DQ
c. Variation in voltage drop I DR D below its Q-point value
d. All of the above
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Answer
Explanation
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ANSWER: All of the above
Explanation:
No explanation is available for this question!
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10) The output signal generated corresponding to the magnified input signal by a linear amplifier is _________
A. Larger in size
B. Smaller in size
C. Similar in shape as that of input signal
D. Different in shape as that of input signal
a. A & C
b. B & D
c. B & C
d. A & D
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Answer
Explanation
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ANSWER: A & C
Explanation:
No explanation is available for this question!
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