BARC-2018 EC: EMFT Nuclear Quiz 4

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Question 1

The Electric field of a uniformed plane wave in free space is given by
The magnetic field is: -

• A
• B
• C
• D

Question 2

Let the electric field vector of a plane electromagnetic wave propagating in a homogenous medium be expressed as , where the propagation constant is a function of the angular frequency . Assume that and are known and are real. From the information available, which one of the following CANNOT be determined?

• AThe type of polarization of the wave.
• BThe group velocity of the wave.
• CThe phase velocity of the wave.
• DThe power flux through the z = 0 plane.

Question 3

Which of the following statements is not a characteristic of static magnetic fields?

• AIt is solenoidal.
• BIt is conservative,
• CMagnetic flux lines are always closed.
• DNon Conservative 

Question 4

A potential field exists in a region where  is

• A
• B
• C
• D

Question 5

A conductor with cross-sectional area of .carrier a conductor current 2. If and , the magnitude of the displacement current density is

• A48.4
• B8.11
• C32.6
• D16.4

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