The electric flux density and electric field intensity have which of the following relation? - Electromagnetic Field Theory

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

The electric flux density and electric field intensity have which of the following relation?

A)

Linear

B)

Nonlinear

C)

Inversely linear

D)

Inversely nonlinear

Correct Answer : Option (A) : Linear

Explanation : The electric flux density is directly proportional to electric field intensity. The proportionality constant is permittivity. D=ε E. It is clear that both are in linear relationship.

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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

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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

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