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Electromagnetic Field Theory
A fan blade of length 2R rotates in a time period T in a magnetic field B. The induced voltage in the blade is proportional to
R2B / T.
RBT.
2RBT.
R2BT.
R2B / T.
RBT.
2RBT.
R2BT.
Answer
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Related Question
Electromagnetic Field Theory
A satellite that simply reflect back the signals from one region of the earth to the other region is known as
Passive satellite
Geostationary satellite
Active satellite
Orbiting satellite
Passive satellite
Geostationary satellite
Active satellite
Orbiting satellite
Answer
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Electromagnetic Field Theory
In microwave communication links, when fading due to rain attenuation occurs then technique adopted for solving the problem would include
Path diversity and frequency diversity
Antenna replacement and feed correction
Polarization shifting and code diversity
Amplitude timing and phase correction
Path diversity and frequency diversity
Antenna replacement and feed correction
Polarization shifting and code diversity
Amplitude timing and phase correction
Answer
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Electromagnetic Field Theory
Which of this statement is not characteristic of a static magnetic field
it is solenoidal.
it has no sink or sources.
magnetic flux lines are always closed.
it is conservative.
it is solenoidal.
it has no sink or sources.
magnetic flux lines are always closed.
it is conservative.
Answer
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Electromagnetic Field Theory
A dipole having a moment p – 3ux - 5uy + 10uz ncm is located at p(1,2,-4) in free space. The V as Q(2,3,4) is
1.26 V.
2.62 V.
2.52 V.
1.31 V.
1.26 V.
2.62 V.
2.52 V.
1.31 V.
Answer
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Electromagnetic Field Theory
Materials subjected to rapid reversals of magnetism should have
low hysteresis loss.
high permeability.
low permeability.
both a and b.
low hysteresis loss.
high permeability.
low permeability.
both a and b.
Answer
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