GATE ECE 2001 | GATE ECE Year Wise Previous Years Questions

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GATE ECE 2001

MCQ (Single Correct Answer)

-0.3

A transmission line is distortionless if

$$R\,L = {1 \over {G\,C}}$$

$$R\,L = G\,C$$

$$L\,G = R\,C$$

$$R\,G = L\,C$$

GATE ECE 2001

MCQ (Single Correct Answer)

-0.6

In a uniform linear array, four isotropic radiating elements are spaced $$\lambda /4$$ apart. The progressive phase shift between the elements required for forming the main beam at 60° off the end-fire is

$$ - \pi \,\,rad$$

$$ - \pi /2\,\,rad$$

$$ - \pi /4\,\,rad$$

$$ - \pi /8\,\,rad$$

GATE ECE 2001

MCQ (Single Correct Answer)

-0.3

The phase velocity of waves propagating in a hollow metal waveguide is

greater than the velocity of light in free space

less than the velocity of light in free space

equal to the velocity of light in free space

equal to the group velocity

GATE ECE 2001

MCQ (Single Correct Answer)

-0.6

A medium wave radio transmitter operating at a wavelength of 492 m has a tower antenna of height 124m. What is the radiation resistance of the antenna?

25 $$\Omega $$

36.5 $$\Omega $$

50 $$\Omega $$

73 $$\Omega $$

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