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Electromagnetic Field Theory

Electromagnetic Field Theory
The radiation pattern of a parabola antenna is

None of these
A figure of directional
Highly directional
Omnidirectional

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Electromagnetic Field Theory
Voltage applied across a dielectric produces an electrostatic field 50 times greater than air. The dielectric constant of the dielectric will be

 5.
 10.
 50.
 20.

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Electromagnetic Field Theory
The force required to seperate two surfaces with a contact area measuring 5 cm by 6 cm, when flux density normal to the surface is 0.8 tesla, will be

 764 N.
 76.4 N.
 76400 N.
 7640 N.

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Electromagnetic Field Theory
A dipole having a moment p – 3ux - 5uy + 10uz ncm is located at p(1,2,-4) in free space. The V as Q(2,3,4) is

 1.31 V.
 1.26 V.
 2.62 V.
 2.52 V.

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Electromagnetic Field Theory
A Yagi antenna has a driven antenna

Only
With a reflector and one or more directors
With a reflector
With one or more directors

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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

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

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MORE MCQ ON Electromagnetic Field Theory

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