GATE (Graduate Aptitude Test in Engineering) Electronics: Questions 1036 - 1040 of 1076

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Question 1036

Gain and Directivity

Appeared in Year: 2015

Question

MCQ▾

The directivity of an antenna array can be increased by adding more antenna elements, as a larger number of elements

Choices

Choice (4)Response

a.

Results in a better impedance matching

b.

Increases the effective area of the antenna

c.

Improves the radiation efficiency

d.

Allows more power to be transmitted by the antenna

Question 1037

Appeared in Year: 2017

Question

Numeric Answer▾

The voltage of an electromagnetic wave propagating in a coaxial cable with uniform characteristic impedance is Volts, where is the distance along the length of the cable in metres, is the complex propagation constant, and frequency. The absolute value of the attenuation in the cable in is …

Question 1038

Arithmetic Circuits, Code Converters, Multiplexers, Decoders and PLAs

Appeared in Year: 2017

Question

MCQ▾

Consider the circuit shown in figure.

The Boolean Expression F Implemented by the Circuit

The Boolean expression F implemented by the circuit is

Choices

Choice (4)Response

a.

b.

c.

d.

Question 1039

Complementary Function and Particular Integral

Appeared in Year: 2017

Question

MCQ▾

The general solution of the differential equation

in terms of arbitrary constants

Choices

Choice (4)Response

a.

b.

c.

d.

Question 1040

Z-Transform, Interpolation of Discrete-Time Signals

Appeared in Year: 2016

Question

MCQ▾

A discrete time signal has z-transform . If is the z-transform of another signal , then

Choices

Choice (4)Response

a.

b.

c.

d.

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