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ECIL GET 2017 Recruitment: Electronics Section Quiz 13

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Question 1

A system is said to be BIBO stable if Bounded Inputs always yield Bounded Outputs. By this criterion,

As u(t) is bounded but its derivative impulse function is unbounded and its integration is also unbounded at t equal to infinity.

Question 2

Three resistors of 6 Ω each are connected as shown in the following figure. The equivalent resistance between X₁ and X₂ is:

Question 3

For a single phase fully controlled converter bridge operating with continuous load current, the converter will operate in inverting mode for triggering angle,

such that:

Question 4

The divergence of magnetic flux density is :

Question 5

Silicon is not suitable for fabrication of light emitting diodes because it is:

Question 6

The fundamental postulate of magneto static

in free space is based on

Question 7

Which of the following technology results in least power dissipation?

Question 8

For a Phase Locked Loop system, the open loop transfer function is
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The phase margin is 50° and the crossover frequency is approximately 1000 rad/s.
A time delay is introduced in the phase detector reducing the phase margin to 40°.
The maximum permissible time delay (in seconds) is:

Question 9

Compared to a CISC Processor, a RISC processor has

Question 10

We wish to transmit a digital voice at 32kbps through a communication channel having bandwidth of 3000 Hz. The received signal to noise power ratio is 30 dB. State which of the following statement is true?

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ESE & GATE EC General

Aug 24ESE & GATE EC