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ISRO EC 2018:Analog Circuits Booster Quiz 2
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Question 1
A transistor is connected in CB configuration. When emitter voltage is changed by 100 m V, the emitter current changes by 10 m A, During this variation collector to base voltage is kept constant. Calculate the dynamic input resistance of the transistor______ (fill in the blanks).
Question 2
The saturation voltage of the ideal op-amp shown is ±10V. The output voltage v0 of the following circuit in the steady-state is
Question 3
Which statement is correct in case of ideal OPAMP?
Question 4
In a diode circuit, find the value of VD if voltage across diode is 0.7V at 1 mA dc, where n = 2.
Question 5
In the circuit shown in Figure, the current gain (β) of the ideal transistor is 10. The operating point of the transistor (Vcc, Ic) is
Question 6
Find the value of RB to design a second order butter worth voltage control voltage source band worth filter with 
and gain at central frequency is 10 and given R =1k and Ra=1k?
and gain at central frequency is 10 and given R =1k and Ra=1k? Question 7
Find the value of Rx for a Schmitt trigger oscillator to oscillate 
. Assume 
,
?
. Assume ,? Question 8
Consider the circuit shown in the figure. In this circuit R = 1 kΩ and C = 1 μF. The input voltage is sinusoidal with a frequency of 50 Hz, represented as a phasor with magnitude Vi and phase angle 0 radian as shown in the figure. The output voltage is represented as a phasor with magnitude V0 and phase angle δ radian. What is the value of the output phase angle δ (in radian) relative to the phase angle of the input voltage?
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Sep 21ESE & GATE EC
