An inductor designed with 400 turns coil wound on an iron core of 16 cm2 cross sectional area and with a cut of air gap length of 1 mm. The coil is connected to a 230 V, 50 Hz supply. Neglected coil resistance, core loss, iron reluctance and leakage inductance. Find the current in the inductor.

Electromagnetic Field Theory
An inductor designed with 400 turns coil wound on an iron core of 16 cm2 cross sectional area and with a cut of air gap length of 1 mm. The coil is connected to a 230 V, 50 Hz supply. Neglected coil resistance, core loss, iron reluctance and leakage inductance. Find the current in the inductor.

18.08 A.

2.28 A.

9.04 A.

4.56 A.

18.08 A.

2.28 A.

9.04 A.

4.56 A.

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Electromagnetic Field Theory
A conductor is rotating with in a magnetic field. At which of the positions do the peak voltages occur?

Along the axis of the magnetic field.

At an angle of 45° to the axis of the magnetic field.

Anywhere.

At right angles to the axis of the magnetic field.

Along the axis of the magnetic field.

At an angle of 45° to the axis of the magnetic field.

Anywhere.

At right angles to the axis of the magnetic field.

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Electromagnetic Field Theory
The shape of B-H curve for air gap is

parabola.

straight line.

ellipse.

hyperbola.

parabola.

straight line.

ellipse.

hyperbola.

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Electromagnetic Field Theory
Tropospheric scatter is used with frequencies in the

VLF

UHF

VHF

HF

VLF

UHF

VHF

HF

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Electromagnetic Field Theory
The statement which is not correct from the following:

Gauss’s static that divergence of D = ρu.

Gauss’s law states that total electric flux through any surface is equal to the total charge enclosed by surface.

For a uniform long charged line with l1 c/m the electric field intensity E is given as E = ρL/(π ε0.r).

An electric flux line is an imaginary path or a line drawn in such a way, that its direction at any point is the direction of electric field at that point.

Gauss’s static that divergence of D = ρu.

Gauss’s law states that total electric flux through any surface is equal to the total charge enclosed by surface.

For a uniform long charged line with l1 c/m the electric field intensity E is given as E = ρL/(π ε0.r).

An electric flux line is an imaginary path or a line drawn in such a way, that its direction at any point is the direction of electric field at that point.

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Electromagnetic Field Theory
It was suggested by _____________ that the electric field should be imagined to be divided into tubes of force containing a fixed number of line of force

Kelvin.

Faraday.

all of above.

Newton.

Kelvin.

Faraday.

all of above.

Newton.

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Electromagnetic Field Theory

Electromagnetic Field Theory A conductor is rotating with in a magnetic field. At which of the positions do the peak voltages occur?

Electromagnetic Field Theory The shape of B-H curve for air gap is

Electromagnetic Field Theory Tropospheric scatter is used with frequencies in the

Electromagnetic Field Theory The statement which is not correct from the following:

Electromagnetic Field Theory It was suggested by _____________ that the electric field should be imagined to be divided into tubes of force containing a fixed number of line of force

Electromagnetic Field Theory
A conductor is rotating with in a magnetic field. At which of the positions do the peak voltages occur?

Electromagnetic Field Theory
The shape of B-H curve for air gap is

Electromagnetic Field Theory
Tropospheric scatter is used with frequencies in the

Electromagnetic Field Theory
The statement which is not correct from the following:

Electromagnetic Field Theory
It was suggested by _____________ that the electric field should be imagined to be divided into tubes of force containing a fixed number of line of force