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Electromagnetic Field Theory

Electromagnetic Field Theory
The attenuation in waveguide above to cut off frequency

Zero
Very low
Infinite
Very high

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Electromagnetic Field Theory
The drawback of Daltons atomic structure is that, it says

 most of the volume of an atom is empty space.
 none of these.
 unique nature of atom.
 the atoms can neither be created nor be destroyed.

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

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

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Electromagnetic Field Theory
For a linear electromagnetic circuit, which of the following statement is true?

 Field energy is lesser than the co-energy.
 Field energy is equal to the co-energy.
 Co-energy is zero.
 Field energy is greater than the co-energy.

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Electromagnetic Field Theory
A magnetic field B = 5 × 10-2 uz T exerts a force on 0.02 m conductor along the x-axis. The conductor carried a current of 5 mA in the – ux direction. What force must be applied to the conductor to hold it in position

 5 × 10-5 uy N.
 5 × 10-5 uz N.
  - 5 × 10-5 uy N.
 5 × 10-5 ux N.

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

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MORE MCQ ON Electromagnetic Field Theory

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