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Electromagnetic Field Theory

Electromagnetic Field Theory
What is the unit of magnetic charge

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

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Electromagnetic Field Theory
The principle of dynamically induced emf is utilized in a

 choke.
 transformer.
 generator.
 thermocouple.

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Electromagnetic Field Theory
In frec space E (z,t) = 103 sin(ωt - βz) uy v/m. What is the value of H (z,t)

 (103/377) cos(ωt - β z)(-ux) A/m.
 (103/377) sin(ωt - β z)(-uy) A/m.
  (103/377) sin(ωt - β z)(-ux) A/m.
 None of above.

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Electromagnetic Field Theory
Fleming's right hand rule may be applied to an electric generator to find out the direction of

 induced emf.
 rotor rotation.
None of these
 magnetic field.

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Electromagnetic Field Theory
In above question no. 9, the average force on the core to reduce the air gap will be

 6664.8 N.
 3332.47 N.
 1666.22 N.
 832.29 N.

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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.
 8 V.
 80 V.
 40 V.

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MORE MCQ ON Electromagnetic Field Theory

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