GATE EE 2020 Paper 1 — page 17

Questions 49–51 of 65. Imported answers require review unless explicitly marked reviewed.

Which of the following options is true for a linear time-invariant discrete time system that obeys the difference equation:

Your answerChoose one option.

is unaffected by the values of

The system is necessarily causal.

The system impulse response is non-zero at infinitely many instants.

When

, the function

is solely determined by the function

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Let

and

be unit vectors along

and

directions, respectively, in the cylindrical coordinate system. For the electric flux density given by

, the total electric flux, in Coulomb, emanating from the volume enclosed by a solid cylinder of radius 3 and height 5 m oriented along the z-axis with its base at the origin is:

Your answerChoose one option.

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A stable real linear time-invariant system with single pole at

, has a transfer function

with a dc gain of 5. The smallest positive frequency, in rad/s, at unity gain is closest to:

Your answerChoose one option.

8.84

11.08

78.13

122.87

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2020 · Paper 1

Question 39

Question 40

Question 41