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Electromagnetic Field Theory

Electromagnetic Field Theory
The Biot-savarts law is a general modification of

 Faradays law.
 Lenzs law.
 Amperes law.
 Kirchhoffs law.

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Electromagnetic Field Theory
The magnetic field required to reduce the residual magnetism to zero is called

 Retentivity.
 Coercivity.
 Saturation magnetism.
 Hysteresis.

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Electromagnetic Field Theory
Which of the following represents ohms law

 J = σE
 V = RI
 I = GV
All of these

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Electromagnetic Field Theory
Electric flux in coulombs emanating from any surface of a cube containing C coulombs of charge at its centre is

 4πQ / 6ε.
 Q / 4π.
 Q / 6.
 Q / 6ε.

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Electromagnetic Field Theory
Mutual inductance between two magnetically coupled coils depends on

 permeability of core.
 cross sectional area of their common core.
 the number of their turns.
 all of above.

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Electromagnetic Field Theory
Magnetic current is composed of which of the following?

 Both conduction and displacement current.
None of these
 Only conduction current.
 Only displacement current.

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MORE MCQ ON Electromagnetic Field Theory

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