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.

9.04 A.

2.28 A.

4.56 A.

18.08 A.

9.04 A.

2.28 A.

4.56 A.

18.08 A.

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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

1.1304 μH.

37.68 μH.

3.768 μH.

113.04 μH.

1.1304 μH.

37.68 μH.

3.768 μH.

113.04 μH.

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Electromagnetic Field Theory
The divergence of a vector is a scalar, while the curl of a vector is another

Unit vector

Vector

Scalar

None of these

Unit vector

Vector

Scalar

None of these

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Electromagnetic Field Theory
A square corner reflector is used in which of the following?

Radio astronomy

TV broadcast

All of these

Point-to-point communication

Radio astronomy

TV broadcast

All of these

Point-to-point communication

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

static induced emf.

dynamically induced emf.

None of these

virtually induced emf.

static induced emf.

dynamically induced emf.

None of these

virtually induced emf.

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Electromagnetic Field Theory
A magnetic circuit requires 800 AT to produce a certain quantity of flux in a magnetic circuit. If its excitation coil has 100 turns and 5 Ohm resistance, the voltage to be applied in exciting coil is

80 V.

8 V.

60 V.

40 V.

80 V.

8 V.

60 V.

40 V.

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Electromagnetic Field Theory

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 The divergence of a vector is a scalar, while the curl of a vector is another

Electromagnetic Field Theory A square corner reflector is used in which of the following?

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

Electromagnetic Field Theory A magnetic circuit requires 800 AT to produce a certain quantity of flux in a magnetic circuit. If its excitation coil has 100 turns and 5 Ohm resistance, the voltage to be applied in exciting coil is

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
The divergence of a vector is a scalar, while the curl of a vector is another

Electromagnetic Field Theory
A square corner reflector is used in which of the following?

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

Electromagnetic Field Theory
A magnetic circuit requires 800 AT to produce a certain quantity of flux in a magnetic circuit. If its excitation coil has 100 turns and 5 Ohm resistance, the voltage to be applied in exciting coil is