GATE (Graduate Aptitude Test in Engineering) Electronics: Questions 886 - 890 of 1076

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Question 886

Appeared in Year: 2016

Question

MCQ▾

Let (where I denote the identity matrix) and , , . Then for any natural number k, equals:

Choices

Choice (4)Response

a.

b.

c.

d.

Question 887

Appeared in Year: 2015

Question

MCQ▾

The impulse response of an LTI system can be obtained by

Choices

Choice (4)Response

a.

Integrating the unit ramp response

b.

Differentiating the unit step response

c.

Integrating the unit step response

d.

Differentiating the unit ramp response

Question 888

Appeared in Year: 2017

Question

MCQ▾

The signal , where t is in seconds, is sampled at a rate of 9000 samples per second. The sampled signal is the input to an ideal lowpass filter with frequency response as follows:

What is the number of sinusoids in the output and their frequencies in ?

Choices

Choice (4)Response

a.

b.

c.

d.

Question 889

Appeared in Year: 2017

Question

Numeric Answer▾

For the circuit shown, assume that the NMOS transistor is in saturation. Its threshold voltage and its trans-conductance parameter Neglect channel length modulation and body bias effects. Under these conditions the drain current in mA is …

Under These Conditions the Drain Current

Question 890

Fourier Series and Fourier Transform Representations

Appeared in Year: 2016

Question

Numeric Answer▾

The energy of the signal is …

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