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.

18.08 A.

4.56 A.

9.04 A.

2.28 A.

18.08 A.

4.56 A.

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Electromagnetic Field Theory
If n is the polarization vector and k is the direction of propagation plane electromagnetic wave, then

n = K.

n = - k.

n × k = 0.

n. k = 0.

n = K.

n = - k.

n × k = 0.

n. k = 0.

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Electromagnetic Field Theory
According to Coulomb’s law, the force of attraction or repulsion, between to electrical charges is

inversely proportional to the distance between them.

inversely proportional to the square of the distance between them.

directly proportional to the square of the distance between them.

directly proportional to the distance between them.

inversely proportional to the distance between them.

inversely proportional to the square of the distance between them.

directly proportional to the square of the distance between them.

directly proportional to the distance between them.

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Electromagnetic Field Theory
An insulated metal sphere of 20 cm diameter is charged by rubbing with charges 2 × 10-8 C. Potential developed will be

900 V.

200 V.

1800 V.

0 V.

900 V.

200 V.

1800 V.

0 V.

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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
Magnetic flux density emerging out of a closed surface is

infinite.

depends on magnetic movements inside the closed surface.

depends on magnetic movements outside the closed surface

zero.

infinite.

depends on magnetic movements inside the closed surface.

depends on magnetic movements outside the closed surface

zero.

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Electromagnetic Field Theory

Electromagnetic Field Theory If n is the polarization vector and k is the direction of propagation plane electromagnetic wave, then

Electromagnetic Field Theory According to Coulomb’s law, the force of attraction or repulsion, between to electrical charges is

Electromagnetic Field Theory An insulated metal sphere of 20 cm diameter is charged by rubbing with charges 2 × 10-8 C. Potential developed 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 Magnetic flux density emerging out of a closed surface is

Electromagnetic Field Theory
If n is the polarization vector and k is the direction of propagation plane electromagnetic wave, then

Electromagnetic Field Theory
According to Coulomb’s law, the force of attraction or repulsion, between to electrical charges is

Electromagnetic Field Theory
An insulated metal sphere of 20 cm diameter is charged by rubbing with charges 2 × 10-8 C. Potential developed 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
Magnetic flux density emerging out of a closed surface is