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Electromagnetic Field Theory
The virtual height of an ionospheric layer is __________ true height
Higher than
No relation
Equal to
Less than
Higher than
No relation
Equal to
Less than
Answer
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Related Question
Electromagnetic Field Theory
Poyniting vector has the dimensions
Watt × metre.
Watt × metre2.
Watt/metre.
Watts/metre2.
Watt × metre.
Watt × metre2.
Watt/metre.
Watts/metre2.
Answer
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Electromagnetic Field Theory
The force required to seperate two surfaces with a contact area measuring 5 cm by 6 cm, when flux density normal to the surface is 0.8 tesla, will be
764 N.
76.4 N.
76400 N.
7640 N.
764 N.
76.4 N.
76400 N.
7640 N.
Answer
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Electromagnetic Field Theory
________ at a point is defined as the force experienced per unit positive charge at a point placed in the electric field.
Electric intensity.
Magnetic flux density.
None of these
Electric flux.
Electric intensity.
Magnetic flux density.
None of these
Electric flux.
Answer
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Electromagnetic Field Theory
A rectangular waveguide is a
Hollow rectangular conducting tube through which electromagnetic waves can be propagat-ed
Rectangular conducting wire to propagate electromagnetic waves
Hollow rectangular walled room carrying electromagnetic wave
Tube antenna to transmit and receive electromagnetic waves
Hollow rectangular conducting tube through which electromagnetic waves can be propagat-ed
Rectangular conducting wire to propagate electromagnetic waves
Hollow rectangular walled room carrying electromagnetic wave
Tube antenna to transmit and receive electromagnetic waves
Answer
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Electromagnetic Field Theory
A conductor of length 1 metre moves at right angles to magnetic field of flux density 1 Wb/m2 with a velocity of 25 m/s. The induced emf in the conductor will be
100 V.
25 V.
50 V.
75 V.
100 V.
25 V.
50 V.
75 V.
Answer
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