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Electromagnetic Field Theory
In case of surface waves the field strength at a point is directly proportional to
Antenna height
Current of the antenna
Wave frequency
Distance of the point from the antenna
Antenna height
Current of the antenna
Wave frequency
Distance of the point from the antenna
Answer
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Related Question
Electromagnetic Field Theory
The drawback of Daltons atomic structure is that, it says
most of the volume of an atom is empty space.
none of these.
unique nature of atom.
the atoms can neither be created nor be destroyed.
most of the volume of an atom is empty space.
none of these.
unique nature of atom.
the atoms can neither be created nor be destroyed.
Answer
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Electromagnetic Field Theory
A point charge in space is attracted towards a dielectric material because of the
maximisation of electrostatic flux.
all of above.
phenomenon of dielectric polarisation.
dielectric hysteresis.
maximisation of electrostatic flux.
all of above.
phenomenon of dielectric polarisation.
dielectric hysteresis.
Answer
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Electromagnetic Field Theory
Two infinite parallel metal plates are charged with equal surface charge density of the same polarity. The electric field in the gap between the plates is
same as that produced by one plate.
dependent on coordinates of field points.
zero.
double the field produced by one plate.
same as that produced by one plate.
dependent on coordinates of field points.
zero.
double the field produced by one plate.
Answer
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Electromagnetic Field Theory
Magnetic current is composed of which of the following?
Only conduction current.
Both conduction and displacement current.
Only displacement current.
None of these
Only conduction current.
Both conduction and displacement current.
Only displacement current.
None of these
Answer
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Electromagnetic Field Theory
The main disadvantage of the two-hole directional coupler is
Narrow bandwidth
Poor directivity
High standing wave ratio
Low directional coupling
Narrow bandwidth
Poor directivity
High standing wave ratio
Low directional coupling
Answer
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