A rectangular loop in the x – z plane bounded by the lines x = 0, x = a, z = 0 and z = b is in a time varying magnetic field is given by B = B0 cosωt + ay. Where B0 is constant, ω is angular frequency and ay unit vector in the y direction. Now the emf induced in the loop is given by

Electromagnetic Field Theory
A rectangular loop in the x – z plane bounded by the lines x = 0, x = a, z = 0 and z = b is in a time varying magnetic field is given by B = B0 cosωt + ay. Where B0 is constant, ω is angular frequency and ay unit vector in the y direction. Now the emf induced in the loop is given by

Bo ω sinω t.

abω Bo sinω t.

ab Bo cosω t.

Zero.

Bo ω sinω t.

abω Bo sinω t.

ab Bo cosω t.

Zero.

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Electromagnetic Field Theory
Which of the following is zero in relation to electromagnetic fields?

Div curl A.

Grad div A.

Div grad V.

Curl curl A.

Div curl A.

Grad div A.

Div grad V.

Curl curl A.

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Electromagnetic Field Theory
A long wire composed of a smooth round conductor runs above and parallel to the ground (assumed to be a large conducting plane). A high voltage exits between the conductor and the ground. The maximum electric stress occur at

Midway between the conductor and ground.

The upper surface of the conductor.

The lower surface of the conductor.

The ground surface.

Midway between the conductor and ground.

The upper surface of the conductor.

The lower surface of the conductor.

The ground surface.

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Electromagnetic Field Theory
Voltage applied across a dielectric produces an electrostatic field 50 times greater than air. The dielectric constant of the dielectric will be

50.

10.

5.

20.

50.

10.

5.

20.

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Electromagnetic Field Theory
Which of the following is multiband HF receiving antenna?

Log-periodic

Conical horn

Folded dipole

Square loop

Log-periodic

Conical horn

Folded dipole

Square loop

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Electromagnetic Field Theory
A potential field is given by V = 3x2 y – yz. The electric field at P(2, -1, 4) is

12 Ix - Iz V/m.

12 Ix + 8 Iy + Iz V/m.

12 Ix - 8 Iy - Iz V/m.

12 Ix - 8 Iy V/m.

12 Ix - Iz V/m.

12 Ix + 8 Iy + Iz V/m.

12 Ix - 8 Iy - Iz V/m.

12 Ix - 8 Iy V/m.

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Electromagnetic Field Theory

Electromagnetic Field Theory Which of the following is zero in relation to electromagnetic fields?

Electromagnetic Field Theory A long wire composed of a smooth round conductor runs above and parallel to the ground (assumed to be a large conducting plane). A high voltage exits between the conductor and the ground. The maximum electric stress occur at

Electromagnetic Field Theory Voltage applied across a dielectric produces an electrostatic field 50 times greater than air. The dielectric constant of the dielectric will be

Electromagnetic Field Theory Which of the following is multiband HF receiving antenna?

Electromagnetic Field Theory A potential field is given by V = 3x2 y – yz. The electric field at P(2, -1, 4) is

Electromagnetic Field Theory
Which of the following is zero in relation to electromagnetic fields?

Electromagnetic Field Theory
A long wire composed of a smooth round conductor runs above and parallel to the ground (assumed to be a large conducting plane). A high voltage exits between the conductor and the ground. The maximum electric stress occur at

Electromagnetic Field Theory
Voltage applied across a dielectric produces an electrostatic field 50 times greater than air. The dielectric constant of the dielectric will be

Electromagnetic Field Theory
Which of the following is multiband HF receiving antenna?

Electromagnetic Field Theory
A potential field is given by V = 3x2 y – yz. The electric field at P(2, -1, 4) is