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BARC Full Syllabus Test 16

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Question 1

For the circuit given below, Find

if β is large.

Question 2

Consider the following subtraction result which is performed using 2’s compliment and the result obtained is also in 2’s complemented from:

(1) 11010 – 10000 = 01010

(2) 000100 – 011000 = 101100

(3) 11010 – 01101 = 10011

Which of the above subtraction are performed correctly?

Question 3

Consider a random process x(t) and its derivative

. Assume that the derivatives are well defined. The cross correlation function R_xx(t₁, t₂) is

Question 4

Consider the RLC circuit shown in figure. For step input (V_i), the overshoot is equal to

Question 5

Determine the Boolean expression V₀ (Consider R = 5 kΩ)

Question 6

Consider a signal as given:-

If S(t) is applied to fitter matched to it, find the output ?

Question 7

Consider a unity feedback system having an open loop transfer function.

If phase margin is 0°, then value of k is ____

Question 8

An 8

1 MUX is used to implement a function f(w,x,y,z) = Sm(0,5,7,8,10,13) the correct data inputs ( I₀ to I₇) and selection inputs (S₂ to S₀) are respectively

Question 9

A right circularly polarized (RCP) plane wave is incident at an angle of 60 ° to the normal, on an air-dielectric interface. If the reflected wave is linearly polarized, the relative dielectric constant

is:

Question 10

For the voltage amplifier circuit shown in the figure, A_v is very high. Also R_S = 1mΩ, R_L = 1kΩ R₁ = 1 kΩ and R₂ = 1MΩ

Then what is the value of |V_o/V_s| = ?

Question 11

Consider a linear DM system designed to accommodate analog message signals limited to bandwidth of 3.5 kHz. A sinusoidal test signals of amplitude A_max = 1V and frequency f_m= 800 Hz is applied to system. The sampling rate of the system is 64 kHz. The minimum value of the step size to avoid overload is