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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?
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.
At right angles to the axis of the magnetic field.
Answer
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Related Question
Electromagnetic Field Theory
A square corner reflector is used in
Radio astronomy
Tv broadcast
All of these
Point to point communication
Radio astronomy
Tv broadcast
All of these
Point to point communication
Answer
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Electromagnetic Field Theory
A point charge in space is attracted towards a dielectric material because of the
phenomenon of dielectric polarisation.
dielectric hysteresis.
maximisation of electrostatic flux.
all of above.
phenomenon of dielectric polarisation.
dielectric hysteresis.
maximisation of electrostatic flux.
all of above.
Answer
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Electromagnetic Field Theory
When a wave is incident from the more dense into a less dense medium at an angle equal to or exceeding the critical angle, the wave suffers total internal __________ .
Refraction
Reflection
Transmission
None of these
Refraction
Reflection
Transmission
None of these
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
3.75 N.
15 N.
7.5 N.
20 N.
3.75 N.
15 N.
7.5 N.
20 N.
Answer
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Electromagnetic Field Theory
If a and b are the dimensions of waveguide then
a = b/4
a = 2b
a = b
a = 3b
a = b/4
a = 2b
a = b
a = 3b
Answer
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