1 ) A diode connected load in a common-emitter stage provides_____ voltage gain
a) Zero b) Unity
c) Infinite d) None of above
Answer:- b) Unity
2 ) To represent channel-length modulation in small-signal Model, we add a resistor in ___ to the current source
a) Series b) Parallel
c) None of above
Answer:- b) Parallel .
3) In the figure what value of drain voltage?
a) 0V b) 0.4V
c) 0.6V d) 0.8V
Answer:- d) 0.8 V
4) The effect of degeneration in small-signal can be eliminated by a_____
a) Coupling Capacitor b) Bypass capacitor
c) Both of above d) None of above
Answer:- b) Bypass capacitor
5) If Threshold Voltage is 0.5V and λ = 0, M1 in the figure is _______
a) In saturation b) Not in Saturation
Answer:- b) Not in Saturation
6 ) What is the reason for connecting a capacitor in parallel with Rs?
a) 1. It blocks the noise
b) For ac signal it acts a short circuit resulting in grounding source terminal
c) It blocks the noise & for ac signal it acts a short circuit resulting in grounding source terminal
d) To increase impedance
Answer:- c) It blocks the noise & for ac signal it acts a short circuit resulting in grounding source terminal
7 ) The current source shown in the figure can be realized by a____
a) NMOS b) PMOS
c) Both of them d)None of them
Answer:- b) PMOS
8 ) The small-signal voltage gain of the CS stage as shown in the figure is ____
a) 1.66 b) 3.33
c) 6.66 d) 9.99
Answer:- c) 6.66
9 ) The circuit shown in the figure _____
a) Behaves like a current source
b) Does not behaves like a current source
c) Option 2
Answer:- b) Does not behaves like a current source
10 ) Which of the following is true about the common Source amplifier?
a) It has low input impedance
b) It has high output impedance
c) Infinite gain
d) Phase reversal voltage output
Answer:- d) Phase reversal voltage output
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