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Electromagnetic Field Theory
A long wire composed of a smooth round conductor runs above and parallel to the ground (assumed to be a large conducting plane). A high voltage exists between the conductor and the ground. The maximum electric stress occurs at
midway between the conductor and ground.
lower surface of the conductor.
the ground surface.
upper surface of the conductor.
midway between the conductor and ground.
lower surface of the conductor.
the ground surface.
upper surface of the conductor.
Answer
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Related Question
Electromagnetic Field Theory
Which of the following represents ohms law
J = σE
All of these
V = RI
I = GV
J = σE
All of these
V = RI
I = GV
Answer
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Electromagnetic Field Theory
The developed electromagnetic force and or torque in electromechanical energy conversion system act in a direction that tends
to increase the stored energy at constant flux.
to decrease the co-energy at constant mmf.
to decrease the stored energy at constant flux.
to decrease the stored energy at constant mmf.
to increase the stored energy at constant flux.
to decrease the co-energy at constant mmf.
to decrease the stored energy at constant flux.
to decrease the stored energy at constant mmf.
Answer
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Electromagnetic Field Theory
How much current must flow in a loop of radius 1m to produce a magnetic field of 1 mA/m?
1mA.
2 mA.
1.5 mA.
2.5 mA.
1mA.
2 mA.
1.5 mA.
2.5 mA.
Answer
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Electromagnetic Field Theory
In free space E (z, t) = 103 sin(ωt - βz) uy v/m. What is the value of H (z, t)
(103/377) sin(ωt - β z)(-ux) A/m.
None of above.
(103/377) cos(ωt - β z)(-ux) A/m.
(103/377) sin(ωt - β z)(ux) A/m.
(103/377) sin(ωt - β z)(-ux) A/m.
None of above.
(103/377) cos(ωt - β z)(-ux) A/m.
(103/377) sin(ωt - β z)(ux) A/m.
Answer
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Electromagnetic Field Theory
The radiation pattern of a parabola antenna is
Omnidirectional
A figure of directional
None of these
Highly directional
Omnidirectional
A figure of directional
None of these
Highly directional
Answer
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