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Electromagnetic Field Theory

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

True
False

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

 zero.
 at an angle 45o with the axis.
 perpendicular to axis.
 parallel to axis.

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Electromagnetic Field Theory
The minimum height of outer atmosphere is

400 km
200 km
100 km
150 km

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Electromagnetic Field Theory
A metal surface with 1 meter radius and surface charge density of 20 coulombs / m2 is enclosed in a 10 m side cube. The total outward electric displacement normal to the surface of the cube is

 40π coulombs.
 none of these.
 80π coulombs.
 10π coulombs.

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Electromagnetic Field Theory
The magnitude of the induced emf in a conductor depends upon on the

 flux density of the magnetic field.
 amount of flux linkage.
 rate of change of flux linkage.
 amount of flux cut.

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Electromagnetic Field Theory
What is the unit of magnetic charge

 Ampere.
  Ampere meter.
 Coulomb.
 Ampere-meter square.

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MORE MCQ ON Electromagnetic Field Theory

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