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Electromagnetic Field Theory

Electromagnetic Field Theory
Electric field inside a hollow metallic charged sphere is

 increasing towards centre.
 zero.
 decreasing towards centre.
 none of above.

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Electromagnetic Field Theory
The lagging of flux density behind the applied magnetising force is known as

All of these
 permeance.
 flux.
 hysteresis.

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Electromagnetic Field Theory
Magnetic field intensity at centre of circular coil, of diameter 1 m and carrying a current of 2 A is

 1 A/m.
 2 A/m.
 4 A/m.
 8 A/m.

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

 – 72 πuz v/m.
  – 360 πuz v/m.
 – 10 uz v/m.
 – 18 πuz v/m.

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Electromagnetic Field Theory
If in a 1 mF capacitor, an instantaneous displacement current of 1 A is to be established in the spaces between its plates then it is possible by applying

 106 volts.
 106 Amp.
 106 Amp/sec.
 106 volts/sec.

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Electromagnetic Field Theory
A magnetic circuit requires 800 AT to produce a certain quantity of flux in a magnetic circuit. If its excitation coil has 100 turns and 5 Ohm resistance, the voltage to be applied in exciting coil is

 60 V.
 80 V.
 8 V.
 40 V.

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MORE MCQ ON Electromagnetic Field Theory

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