ISRO Scientist or Engineer Electronics 2010

Instructions

For the following questions answer them individually

Question 21

For CMOSimplementation of 2 input XORlogic gate, how many nMOSand pMOS transistors are required?

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Question 22

Whichofthe following principles is applied while designing the output matching networkfor a high power Class-C amplifier?

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Question 23

Find the approximate output impedance of the VCCS(voltage-controlled current . source) based circuit at port Vo.

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Question 24

Which of the following parameters of a Silicon Schottky Diode is higher than that of a corresponding PN junction diode?

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Question 25

Assume the intrinsic standoff ratio for the UST is 0.8 for the relaxation oscillator circuit given below. The frequency of oscillation of this circuit is approximately equal

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Question 26

The approximate frequency of oscillation of the circuit shown below is

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Question 27

A unit step voltage travels from left to right along an infinite transmissionline. It hits an inductive discontinuity at t=0. What will be the waveform immediately to the left of the discontinuity?

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Question 28

A lossy open stub having a length of $$\frac{1}{32}$$ wavelength, is approximately equivalent to

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Question 29

Ampere's law relates

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Question 30

Across which type of boundary doesthe electric field have a continuous tangential component?

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