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Electromagnetic Field Theory
Inside a hollow conducting sphere
electric field changes with magnitude of the charge given to the conductor.
electric field changes with distance from the center of the sphere.
electric field is a non zero constant.
electric field is zero.
electric field changes with magnitude of the charge given to the conductor.
electric field changes with distance from the center of the sphere.
electric field is a non zero constant.
electric field is zero.
Answer
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Related Question
Electromagnetic Field Theory
The developed electromagnetic force and or torque in electromechanical energy conversion system act in a direction that tends
to decrease the stored energy at constant mmf.
to decrease the stored energy at constant flux.
to decrease the co-energy at constant mmf.
to increase the stored energy at constant flux.
to decrease the stored energy at constant mmf.
to decrease the stored energy at constant flux.
to decrease the co-energy at constant mmf.
to increase the stored energy at constant flux.
Answer
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Electromagnetic Field Theory
A wire carrying current is bent in the form of a circular loop. Then the magnetic field around each portion of the wire will be
perpendicular to the circumference of the wire.
parallel to half portion and perpendicular for the other half.
parallel to the plane of the wire.
none of above.
perpendicular to the circumference of the wire.
parallel to half portion and perpendicular for the other half.
parallel to the plane of the wire.
none of above.
Answer
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Electromagnetic Field Theory
A conductor is rotating with in a magnetic field. At which of the positions do the peak voltages occur?
At right angles to the axis of the magnetic field.
Anywhere.
At an angle of 45° to the axis of the magnetic field.
Along the axis of the magnetic field.
At right angles to the axis of the magnetic field.
Anywhere.
At an angle of 45° to the axis of the magnetic field.
Along the axis of the magnetic field.
Answer
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Electromagnetic Field Theory
If n is the polarization vector and k is the direction of propagation plane electromagnetic wave, then
n × k = 0.
n = K.
n = - k.
n. k = 0.
n × k = 0.
n = K.
n = - k.
n. k = 0.
Answer
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Electromagnetic Field Theory
The transmitting antennas for lower frequencies (below 500 kHz) are generally
Any of the above
Vertical grounded wire type
Horizontal suspended wire type
Parabolic reflector type
Any of the above
Vertical grounded wire type
Horizontal suspended wire type
Parabolic reflector type
Answer
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