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UPPCL AE 2018: Quiz 18

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Question 1

If in Figure, R = 220

and C= 500 pF, what will be the frequency of oscillations of the phase-shift oscillator employing this network?

Question 2

A second order real system has damping ratio ζ = 0.6 and damping frequency ω_d = 8 rad/sec and the steady state output value at steady state is 1.04. calculate transfer function of the system –

Question 3

How many different output state the following shift register is having, if the initial state is (Q₃ Q₂ Q₁ Q₀)= 0001

Question 4

Find the energy stored in a system for four identical charges Q = 3 nC at the corners 2 m on a side.

Question 5

A second-order system represented by state variables has

The value of natural frequency and damping ratio are respectively

Question 6

A semiconductor is uniformly doped with

acceptors and

donors. Let the free electron and hole concentrations be

and

respectively. Assume that the semiconductor is at thermal equilibrium and that 100% ionization has taken place. Then which of the following is true?

Question 7

A communication channel is having a bandwidth of 3000 Hz. The transmitted power is such that the received Signal-to-Noise ratio is 1023. The maximum data rate that can be transmitted error-free through the channel is:

Question 8

Laplace transform of the function v(t) shown in the figure is:

Question 9

Who has recently been awarded with Nobel Prize for peace in 2016?

Question 10

A sphere of radius R is cut by a plane at a distance h from its centre, thereby breaking the sphere into two different pieces. The cumulative surface area of these two pieces is 25% more than that of the sphere. Find h.

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ESE & GATE EC General

Apr 8ESE & GATE EC