A solid sphere made of insulating material has a radius R and has a total charge Q distributed uniformly in its volume. What is the magnitude of electric field intensity, E, at a distance r (o less than r less than R) inside the sphere

Electromagnetic Field Theory
A solid sphere made of insulating material has a radius R and has a total charge Q distributed uniformly in its volume. What is the magnitude of electric field intensity, E, at a distance r (o less than r less than R) inside the sphere

QR/(4π εo r3).

Qr/(4 π εo R3).

Q/(4 π εo r3).

3 Qr/(4 π εo R3).

QR/(4π εo r3).

Qr/(4 π εo R3).

Q/(4 π εo r3).

3 Qr/(4 π εo R3).

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Electromagnetic Field Theory
Which of following is not a unit of flux?

Maxwell.

Telsa.

All of above.

Weber.

Maxwell.

Telsa.

All of above.

Weber.

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Electromagnetic Field Theory
Biot-Savarts law states the relation between magnetic intensity and

volume current only.

filament current only.

surface current only.

(A), (B), and (D) are all correct.

volume current only.

filament current only.

surface current only.

(A), (B), and (D) are all correct.

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Electromagnetic Field Theory
A coil of 300 turns is wound on a non magnetic core having a mean circumference of 300 mm and a cross sectional area of 300 mm2. The inductance of the coil corresponding to a magnetizing current of 6 A will be

37.68 μH.

3.768 μH.

1.1304 μH.

113.04 μH.

37.68 μH.

3.768 μH.

1.1304 μH.

113.04 μH.

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Electromagnetic Field Theory
Conductor is static and the field is varying then emf will be induced. This principle is called

none of these

virtually induced emf.

dynamically induced emf.

static induced emf.

none of these

virtually induced emf.

dynamically induced emf.

static induced emf.

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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.

2.28 A.

9.04 A.

18.08 A.

4.56 A.

2.28 A.

9.04 A.

18.08 A.

4.56 A.

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Electromagnetic Field Theory

Electromagnetic Field Theory A solid sphere made of insulating material has a radius R and has a total charge Q distributed uniformly in its volume. What is the magnitude of electric field intensity, E, at a distance r (o less than r less than R) inside the sphere

Electromagnetic Field Theory Which of following is not a unit of flux?

Electromagnetic Field Theory Biot-Savarts law states the relation between magnetic intensity and

Electromagnetic Field Theory A coil of 300 turns is wound on a non magnetic core having a mean circumference of 300 mm and a cross sectional area of 300 mm2. The inductance of the coil corresponding to a magnetizing current of 6 A will be

Electromagnetic Field Theory Conductor is static and the field is varying then emf will be induced. This principle is called

Electromagnetic Field Theory
A solid sphere made of insulating material has a radius R and has a total charge Q distributed uniformly in its volume. What is the magnitude of electric field intensity, E, at a distance r (o less than r less than R) inside the sphere

Electromagnetic Field Theory
Which of following is not a unit of flux?

Electromagnetic Field Theory
Biot-Savarts law states the relation between magnetic intensity and

Electromagnetic Field Theory
A coil of 300 turns is wound on a non magnetic core having a mean circumference of 300 mm and a cross sectional area of 300 mm2. The inductance of the coil corresponding to a magnetizing current of 6 A will be

Electromagnetic Field Theory
Conductor is static and the field is varying then emf will be induced. This principle is called