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Electromagnetic Field Theory

Electromagnetic Field Theory
Two straight parallel conductors carry equal currents in opposite direction. The force between them is

 repulsive.
 zero.
 attractive.
 none of above.

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Electromagnetic Field Theory
MUF is highest in periods of greatest sunspot activity.

True
False

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Electromagnetic Field Theory
inductance (L2) in parallel without mutual coupling will be

 20 mH.
 10 mH.
 5 mH.
 15 mH.

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Electromagnetic Field Theory
A sphere of radius with a uniform charge density ρv C/m3 shall have electric flux density at radius “r = a” equal to

 aρv/3 C/m2.
 aρv/4 C/m2.
 ρv/3 C/m2.
 aρv C/m2.

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Electromagnetic Field Theory
1 Tesla =

 1 wb .
 1 wb/ m2.
 1 wb/m.
 1 wb- m2.

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Electromagnetic Field Theory
In an impedance smith chart, a clockwise movement along a constant resistance circle gives rise to

No change in the reactance value
An increase in the value of reactance
Decrease in the value of reactance
No change in the impedance value

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