A circular ring is carrying uniformly distributed charge q and a point charge – Q on the axis of the ring. The magnitude of dipole moment of the charge system is (Assume distance between centre of ring and point charge is d and radius of ring R)

Electromagnetic Field Theory
A circular ring is carrying uniformly distributed charge q and a point charge – Q on the axis of the ring. The magnitude of dipole moment of the charge system is (Assume distance between centre of ring and point charge is d and radius of ring R)

QD.

Q√(R2 + d2).

QR.

QR2/d.

QD.

Q√(R2 + d2).

QR.

QR2/d.

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Electromagnetic Field Theory
Which of the following impedance inversion is obtained?

A half wave line

A quarter wave line

Balun transformer

Short-circuited stub

A half wave line

A quarter wave line

Balun transformer

Short-circuited stub

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Electromagnetic Field Theory
Magnetic circuit with cross sectional area of 20 cm2 is to be operated at 50 Hz from 120 Vrms supply. The number of turns required to active a peak magnetic flux density of 1.8 T in the core flux is

300.

450.

150.

600.

300.

450.

150.

600.

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Electromagnetic Field Theory
The critical frequency of ‘F’ layer is greater than 30 MHz.

True

False

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Electromagnetic Field Theory
Which of this statement is not characteristic of a static magnetic field

it is solenoidal.

it is conservative.

magnetic flux lines are always closed.

it has no sink or sources.

it is solenoidal.

it is conservative.

magnetic flux lines are always closed.

it has no sink or sources.

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Electromagnetic Field Theory
In microwave communication links, when fading due to rain attenuation occurs then technique adopted for solving the problem would include

Amplitude timing and phase correction

Polarization shifting and code diversity

Antenna replacement and feed correction

Path diversity and frequency diversity

Amplitude timing and phase correction

Polarization shifting and code diversity

Antenna replacement and feed correction

Path diversity and frequency diversity

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Electromagnetic Field Theory

Electromagnetic Field Theory A circular ring is carrying uniformly distributed charge q and a point charge – Q on the axis of the ring. The magnitude of dipole moment of the charge system is (Assume distance between centre of ring and point charge is d and radius of ring R)

Electromagnetic Field Theory Which of the following impedance inversion is obtained?

Electromagnetic Field Theory Magnetic circuit with cross sectional area of 20 cm2 is to be operated at 50 Hz from 120 Vrms supply. The number of turns required to active a peak magnetic flux density of 1.8 T in the core flux is

Electromagnetic Field Theory The critical frequency of ‘F’ layer is greater than 30 MHz.

Electromagnetic Field Theory Which of this statement is not characteristic of a static magnetic field

Electromagnetic Field Theory In microwave communication links, when fading due to rain attenuation occurs then technique adopted for solving the problem would include

Electromagnetic Field Theory
A circular ring is carrying uniformly distributed charge q and a point charge – Q on the axis of the ring. The magnitude of dipole moment of the charge system is (Assume distance between centre of ring and point charge is d and radius of ring R)

Electromagnetic Field Theory
Which of the following impedance inversion is obtained?

Electromagnetic Field Theory
Magnetic circuit with cross sectional area of 20 cm2 is to be operated at 50 Hz from 120 Vrms supply. The number of turns required to active a peak magnetic flux density of 1.8 T in the core flux is

Electromagnetic Field Theory
The critical frequency of ‘F’ layer is greater than 30 MHz.

Electromagnetic Field Theory
Which of this statement is not characteristic of a static magnetic field

Electromagnetic Field Theory
In microwave communication links, when fading due to rain attenuation occurs then technique adopted for solving the problem would include