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ESE Technical Revision Quiz 5

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Question 1

The basic structure of an avalanche photodiode is

Question 2

Discrete source S1 has 4 equiprobable symbols while discrete source S2 has 16 equiprobable symbols. When the entropy of these two sources is compared entropy of

Question 3

The 2’s complement subtraction of (7)10 − (11)10 is:

Question 4

Consider the transfer function (0.1 + 0.01s) for a PD controller. What is the frequency at which the magnitude is 20 dB (by using asymptotic Bode’s plot)?

Question 5

The minterm expansion of is

Question 6

The magnitude of electric field, if electric potential is of form 2x2y is:

Question 7

The free electron density in a conductor is (1/1.6) × 1022 cm-3. The electron mobility is 10 cm2/Vs. What is the value of its resistivity?

Question 8

A 1000 Hz sinusoidal voltage is connected to both X and Y inputs of a CRO, which of the following waveforms is seen on CRO?

Question 9

By measuring the VSWR values in the main and auxiliary waveguides of a directional coupler, we can determin its.

Question 10

Consider the following statements for a driving point function
1. Re is an even function of and is 0 or positive for all values of .
2. Im is an even function of and is 0 or positive for all values of .
3. Re is an odd function of and is 0 or negative for all values of .
4. Re for Re
Which of the statements given above is/are correct?
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May 26ESE & GATE EC