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.

18.08 A.

2.28 A.

4.56 A.

9.04 A.

18.08 A.

2.28 A.

4.56 A.

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Electromagnetic Field Theory
A conductor of length L has current I passing through it, when it is placed parallel to strong magnetic field. The force experienced by the conductor will be

BIL.

zero.

BL2I.

BI2L.

BIL.

zero.

BL2I.

BI2L.

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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.

113.04 μH.

3.768 μH.

37.68 μH.

1.1304 μH.

113.04 μH.

3.768 μH.

37.68 μH.

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Electromagnetic Field Theory
Two coupled coils with L1 = L2 = 0.6 H have a coupling coefficient of K = 0.8. The turns ratio N1/N2 is

0.5.

1.

2.

4.

0.5.

1.

2.

4.

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Electromagnetic Field Theory
The effective reactance of an inductive coil

decreases because of stray capacitance as the frequency increases.

remains same irrespective of the frequency.

increases because of stray capacitance as the frequency increases.

none of these.

decreases because of stray capacitance as the frequency increases.

remains same irrespective of the frequency.

increases because of stray capacitance as the frequency increases.

none of these.

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Electromagnetic Field Theory
The magnetic field at any point on the axis of current carrying circular coil will be

perpendicular to axis.

zero.

parallel to axis.

at an angle 45o with the axis.

perpendicular to axis.

zero.

parallel to axis.

at an angle 45o with the axis.

ANSWER DOWNLOAD EXAMIANS APP

Electromagnetic Field Theory

Electromagnetic Field Theory A conductor of length L has current I passing through it, when it is placed parallel to strong magnetic field. The force experienced by the conductor will be

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 Two coupled coils with L1 = L2 = 0.6 H have a coupling coefficient of K = 0.8. The turns ratio N1/N2 is

Electromagnetic Field Theory The effective reactance of an inductive coil

Electromagnetic Field Theory The magnetic field at any point on the axis of current carrying circular coil will be

Electromagnetic Field Theory
A conductor of length L has current I passing through it, when it is placed parallel to strong magnetic field. The force experienced by the conductor will be

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
Two coupled coils with L1 = L2 = 0.6 H have a coupling coefficient of K = 0.8. The turns ratio N1/N2 is

Electromagnetic Field Theory
The effective reactance of an inductive coil

Electromagnetic Field Theory
The magnetic field at any point on the axis of current carrying circular coil will be