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Electromagnetic Field Theory
The critical frequency of ‘F’ layer is greater than 30 MHz.
False
True
False
True
Answer
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Related Question
Electromagnetic Field Theory
In free space E (z, t) = 103 sin(ωt - βz) uy v/m. What is the value of H (z, t)
None of above.
(103/377) cos(ωt - β z)(-ux) A/m.
(103/377) sin(ωt - β z)(-ux) A/m.
(103/377) sin(ωt - β z)(ux) A/m.
None of above.
(103/377) cos(ωt - β z)(-ux) A/m.
(103/377) sin(ωt - β z)(-ux) A/m.
(103/377) sin(ωt - β z)(ux) A/m.
Answer
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Electromagnetic Field Theory
An emf of 16 volts is induced in a coil of inductance 4 H. The rate of change of current must be
16 A / s.
4 A / s.
64 A / s.
32 A / s.
16 A / s.
4 A / s.
64 A / s.
32 A / s.
Answer
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Electromagnetic Field Theory
If a and b are the dimensions of waveguide then
a = b
a = b/4
a = 3b
a = 2b
a = b
a = b/4
a = 3b
a = 2b
Answer
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Electromagnetic Field Theory
1 Tesla =
1 wb/ m2.
1 wb- m2.
1 wb/m.
1 wb .
1 wb/ m2.
1 wb- m2.
1 wb/m.
1 wb .
Answer
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Electromagnetic Field Theory
The magnetic field at any point on the axis of current carrying circular coil will be
at an angle 45o with the axis.
perpendicular to axis.
zero.
parallel to axis.
at an angle 45o with the axis.
perpendicular to axis.
zero.
parallel to axis.
Answer
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