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Electromagnetic Field Theory
Tropospheric scatter propagation is not subject to any fading.
True
False
True
False
Answer
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Related Question
Electromagnetic Field Theory
Two identical circular coils, one closed and another is little split (not enclosed) are placed in an uniform magnetic field which decrease at a constant rate. If the plane to the coils are perpendicular to the field which of the following statements is true?
Joule heating does not occur in each of the coils.
Equal joule heating occurs in both coils.
An emf is induced in both coils.
An emf is induced in split coil.
Joule heating does not occur in each of the coils.
Equal joule heating occurs in both coils.
An emf is induced in both coils.
An emf is induced in split coil.
Answer
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Electromagnetic Field Theory
1 Tesla =
1 wb- m2.
1 wb .
1 wb/m.
1 wb/ m2.
1 wb- m2.
1 wb .
1 wb/m.
1 wb/ m2.
Answer
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Electromagnetic Field Theory
A voltage waveform V(t) = 12t2 is applied across a 1H inductor for t = 0, with initial current through it being zero. The current through the inductor for t = 0 is given by
12t3.
24t.
4t3.
12t.
12t3.
24t.
4t3.
12t.
Answer
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Electromagnetic Field Theory
A point pole has a strength of 4π × 10-4 weber. The force in newtons on a point pole of 4π × 1.5 × 10-4 weber placed at a distance of 10 cm from it will be
15 N.
7.5 N.
3.75 N.
20 N.
15 N.
7.5 N.
3.75 N.
20 N.
Answer
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Electromagnetic Field Theory
The radiation pattern of loop antenna is
Semicircle
Elliptical
Cardoid or Limacon
Circle
Semicircle
Elliptical
Cardoid or Limacon
Circle
Answer
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