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)

QR2/d.

Q√(R2 + d2).

QR.

QD.

QR2/d.

Q√(R2 + d2).

QR.

QD.

ANSWER DOWNLOAD EXAMIANS APP

Electromagnetic Field Theory
The hysteresis loop of a magnetic material has an area of 5 cm2 with the scale given as 1 cm = 2 AT and 1 cm = 50 mwb At 50 Hz; the total hysteresis loss is

25 W.

15 W.

20 W.

50 W.

25 W.

15 W.

20 W.

50 W.

ANSWER DOWNLOAD EXAMIANS APP

Electromagnetic Field Theory
The energy stored in the magnetic field in a solenoid 30 cm long and 3 cm diameter wound with 1000 turns of wire carrying a current at 10 amp, is

0.15 joule.

0.015 joule.

1.15 joule.

0.015 joule.

0.15 joule.

0.015 joule.

1.15 joule.

0.015 joule.

ANSWER DOWNLOAD EXAMIANS APP

Electromagnetic Field Theory
The main purpose of choke is

none of above.

to pass low frequencies.

to pass high frequencies.

to block low frequencies.

none of above.

to pass low frequencies.

to pass high frequencies.

to block low frequencies.

ANSWER DOWNLOAD EXAMIANS APP

Electromagnetic Field Theory
Magnetostriction is a phenomenon of

generation of magnetism in electrical conductors.

change in permeability of ferromagnetic materials during magnetism.

change in physical dimensions of ferromagnetic materials during magnetism.

generation of electricity in ferromagnetic materials.

generation of magnetism in electrical conductors.

change in permeability of ferromagnetic materials during magnetism.

change in physical dimensions of ferromagnetic materials during magnetism.

generation of electricity in ferromagnetic materials.

ANSWER DOWNLOAD EXAMIANS APP

Electromagnetic Field Theory
Plane z = 10 m carries charge 20 C/m2. The electric field intensity at the origin is

– 18 πuz v/m.

– 360 πuz v/m.

– 72 πuz v/m.

– 10 uz v/m.

– 18 πuz v/m.

– 360 πuz v/m.

– 72 πuz v/m.

– 10 uz v/m.

ANSWER DOWNLOAD EXAMIANS APP

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 The hysteresis loop of a magnetic material has an area of 5 cm2 with the scale given as 1 cm = 2 AT and 1 cm = 50 mwb At 50 Hz; the total hysteresis loss is

Electromagnetic Field Theory The energy stored in the magnetic field in a solenoid 30 cm long and 3 cm diameter wound with 1000 turns of wire carrying a current at 10 amp, is

Electromagnetic Field Theory The main purpose of choke is

Electromagnetic Field Theory Magnetostriction is a phenomenon of

Electromagnetic Field Theory Plane z = 10 m carries charge 20 C/m2. The electric field intensity at the origin is

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
The hysteresis loop of a magnetic material has an area of 5 cm2 with the scale given as 1 cm = 2 AT and 1 cm = 50 mwb At 50 Hz; the total hysteresis loss is

Electromagnetic Field Theory
The energy stored in the magnetic field in a solenoid 30 cm long and 3 cm diameter wound with 1000 turns of wire carrying a current at 10 amp, is

Electromagnetic Field Theory
The main purpose of choke is

Electromagnetic Field Theory
Magnetostriction is a phenomenon of

Electromagnetic Field Theory
Plane z = 10 m carries charge 20 C/m2. The electric field intensity at the origin is