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CIL EC : Analog Electronics Quiz 1
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Question 1
Narrow pulses with adjustable mark to space ratio can be obtained from square wave input signal by using which of the following?
1) Schmitt trigger
2) Monostable multivibrator
3) Clippers
Selected the correct answer using the code given below:
1) Schmitt trigger
2) Monostable multivibrator
3) Clippers
Selected the correct answer using the code given below:
Question 2
The built – in potential (diffusion potential) in a p-n junction.
1) is equal to the difference in the Fermi- level of the two sides. Expressed in volts.
2) increases with the increase in the doping levels of the two sides.
3) increases with the increase in temperature.
4) is equal to the average of the Fermi- levels of the two sides.
Which of the above statements are correct?
1) is equal to the difference in the Fermi- level of the two sides. Expressed in volts.
2) increases with the increase in the doping levels of the two sides.
3) increases with the increase in temperature.
4) is equal to the average of the Fermi- levels of the two sides.
Which of the above statements are correct?
Question 3
Statement (I): centre tap transformer is essential for a centre-tapper rectifier.
Statement(II):In half wave rectification minimum two diodes are required.
Statement(II):In half wave rectification minimum two diodes are required.
Question 4
A 40 V dc supply is connected across the network comprising of Zener and silicon diodes as shown. The regulated voltages V01, V02 and source current I s
Question 5
The output Vdc from the below circuit is
Question 6
The h-parameters of a CE amplifier feeding a load of 10 kΩ are hie =1 kΩ. hfe = 50, hre = 0, and 1/hoe = 40 kΩ. The voltage gain would be.
Question 7
Assuming that the diodes in the given circuit are ideal, the voltage V0 is
Question 8
The figure shows the circuit diagram of a rectifier. The load consists of a resistance 10Ω and an inductance 0.05 H connected in series. Assuming ideal thyristor and ideal diode, the thyristor firing angle (in degree) needed to obtain an average load voltage of 70 V is _____
Question 9
The feedback factor for the circuit shown in below is:
Question 10
The output voltage (V0) of the Schmitt trigger shown in the following figure swings between + 15V and –15V. Assume that the operational amplifier is ideal. The output will change from +15V to -15V when the instantaneous value of the input sine wave is
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ESE & GATE ECGeneralJul 13ESE & GATE EC