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GATE EE: 2018 Mini Mock 9

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Question 1

An amplifier has a voltage amplification Av and a fraction mv of its output is feedback in opposition to the input. If mv = 0.1 and Aν = 100, calculate the percentage change in the gain of the system if Aν falls 6 db due to ageing.

Question 2

The number of encirclements about (-1, 0) critical point of Nyquist Plot is expressed as N = P-Z, where P and Z respectively are defined following. Which one is true?

Question 3

The inverse transmission parameters of a two-port network is given as,

Determine the value of x and y for which the network is both reciprocal and symmetrical.

Question 4

Find the potential difference between the two sides of the junction if the distribution of fixed electric charges in the depletion region of a p-n junction in equilibrium. Assume silicon has permittivity ξ?

Question 5

find the Fourier transform of its integral g(x) =

if f(x) has Fourier transform

Question 6

Find the value of if U = x³ + y³ + 3x²y

Question 7

Consider the following instruction [X is any number from 0 to F]
STC
MVIA, X0H
RRC
RRC
RRC
RRC
HLT
After execution of above instructions in INTEL 8085 the content of accumulator will

Question 8

Calculate the value of resistor R_E using feedback concepts so that final voltage gain (A_FB) is equal to 100. Common emitter (C_E) amplifier shown in fig. has voltage gain of 200 when R_E = 0. Stability is brought through negative feedback by adding resistor R_E

Question 9

calculate the volume charge density ρ_v at point (3,5,4) meter. if the potential field at any point in a space containing a dielectric material of relative permittivity 3.2 is given by V= 5xy + 3y²z+5xz Volts where x,y,z are in meters

Question 10

What is the voltage For the magnetically coupled circuit shown in Figure with the dot notation and current direction indicated, write down every loop equation, then put them in matrix form.

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ESE & GATE EE General

Jul 11ESE & GATE EE