Gauss law can be used to compute which of the following? - Electromagnetic Field Theory

Electronics and Communication Engineering (ECE) : Electromagnetic Field Theory - Quiz(MCQ)

Gauss law can be used to compute which of the following?

A)

Permittivity

B)

Permeability

C)

Electric potential

D)

Radius of Gaussian surface

Correct Answer : Option (D) : Radius of Gaussian surface

Explanation : Gauss law relates the electric flux density and the charge density. Thus it can be used to compute radius of the Gaussian surface. Permittivity and permeability are constants for a particular material.

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Q .

Radiation intensity in a given direction is the

A)

Energy radiated per square metre

B)

Power radiated per square metre

C)

Power radiated per unit solid angle in that direction

D)

None of the above

Correct Answer : Option (C) : Power radiated per unit solid angle in that direction

Q .

Which of the following impedance inversion is obtained?

A)

Balun transformer

B)

A quarter wave line

C)

Short-circuited stub

D)

A half wave line

Correct Answer : Option (B) : A quarter wave line

Q .

The wave in wave guide has

A)

Larger frequency than in the free space

B)

Diminishing wavelength than in the free space

C)

Group velocity inversely proportional to wavelength

D)

Larger wavelength than in the free space

Correct Answer : Option (D) : Larger wavelength than in the free space

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Signals and Systems

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