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Electromagnetic Field Theory

Electromagnetic Field Theory
The ability of charged bodies to exert force on one another is attributed to the existence of

 electric field.
 neutrons.
 electrons.
 protons.

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Electromagnetic Field Theory
Conductor is static and the field is varying then emf will be induced. This principle is called

 static induced emf.
 none of these
 dynamically induced emf.
 virtually induced emf.

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Electromagnetic Field Theory
A conductor is rotating with in a magnetic field. At which of the positions do the peak voltages occur?

 At an angle of 45° to the axis of the magnetic field.
 At right angles to the axis of the magnetic field.
 Anywhere.
 Along the axis of the magnetic field.

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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

 1.4 V.
 14.40 V.
 28.8 V.
 2.88 V.

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Electromagnetic Field Theory
A long straight wire carries a current I = 10A. At what distance is the magnetic field H = 1A/m?

 1.29 m.
 1.39 m.
 1.59 m.
 1.19 m.

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

 it is solenoidal.
 it has no sink or sources.
 it is conservative.
 magnetic flux lines are always closed.

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