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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.
20.
10.
50.
5.
20.
10.
50.
Answer
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Related Question
Electromagnetic Field Theory
Tropospheric scatter propagation is not subject to any fading.
True
False
True
False
Answer
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Electromagnetic Field Theory
A pure inductor is connected across a voltage source. Find the active power drawn by the inductor?
0
either 1 or 2
maximum
None of these
0
either 1 or 2
maximum
None of these
Answer
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Electromagnetic Field Theory
An infinite sheet has a charge density of 150 μ C/m. The flux density in μ C/m 2 is
75.
50.
100.
1/75.
75.
50.
100.
1/75.
Answer
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Electromagnetic Field Theory
The tubes of force within the magnetic material are known as
tubes of indication.
lines of force.
magnetic flux.
none of them.
tubes of indication.
lines of force.
magnetic flux.
none of them.
Answer
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Electromagnetic Field Theory
The attenuation in waveguide above to cut off frequency
Very low
Zero
Very high
Infinite
Very low
Zero
Very high
Infinite
Answer
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