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.

QR.

Q√(R2 + d2).

QD.

QR2/d.

QR.

Q√(R2 + d2).

QD.

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Electromagnetic Field Theory
Inside a hollow conducting sphere

electric field changes with distance from the center of the sphere.

electric field is zero.

electric field changes with magnitude of the charge given to the conductor.

electric field is a non zero constant.

electric field changes with distance from the center of the sphere.

electric field is zero.

electric field changes with magnitude of the charge given to the conductor.

electric field is a non zero constant.

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Electromagnetic Field Theory
An electric field of 1.92 × 103 N/C is maintained across two plates separated by 0.015 m. Potential difference across plates will be

28.8 V.

2.88 V.

14.40 V.

1.4 V.

28.8 V.

2.88 V.

14.40 V.

1.4 V.

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Electromagnetic Field Theory
In case of surface waves the field strength at a point is directly proportional to

Current of the antenna

Wave frequency

Antenna height

Distance of the point from the antenna

Current of the antenna

Wave frequency

Antenna height

Distance of the point from the antenna

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Electromagnetic Field Theory
MUF is highest in periods of greatest sunspot activity.

False

True

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Electromagnetic Field Theory
When a conductor moves in the field, so that it makes an angle 8 with the lines of flux, the force F is given as : F = Bl sin2 0.

No

Yes

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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 Inside a hollow conducting sphere

Electromagnetic Field Theory An electric field of 1.92 × 103 N/C is maintained across two plates separated by 0.015 m. Potential difference across plates will be

Electromagnetic Field Theory In case of surface waves the field strength at a point is directly proportional to

Electromagnetic Field Theory MUF is highest in periods of greatest sunspot activity.

Electromagnetic Field Theory When a conductor moves in the field, so that it makes an angle 8 with the lines of flux, the force F is given as : F = Bl sin2 0.

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
Inside a hollow conducting sphere

Electromagnetic Field Theory
An electric field of 1.92 × 103 N/C is maintained across two plates separated by 0.015 m. Potential difference across plates will be

Electromagnetic Field Theory
In case of surface waves the field strength at a point is directly proportional to

Electromagnetic Field Theory
MUF is highest in periods of greatest sunspot activity.

Electromagnetic Field Theory
When a conductor moves in the field, so that it makes an angle 8 with the lines of flux, the force F is given as : F = Bl sin2 0.