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ELECTROMAGNETIC FIELD THEORY

Electromagnetic Field Theory
A loop antenna is a commonly used for

Radar
All of these
Satellite communication
Direction finding

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Electromagnetic Field Theory
The divergence of a vector is a scalar, while the curl of a vector is another

Vector
None of these
Scalar
Unit vector

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Electromagnetic Field Theory
Which antenna is a wideband antenna?

Folded dipole
None of these
Marconi antenna
Hertz antenna

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Electromagnetic Field Theory
The potential that appears at a point in space due to the current which caused it is called potential

Lagging the current
Accelerating
Retardation
Oscillating

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Electromagnetic Field Theory
The minimum height of outer atmosphere is

200 km
400 km
100 km
150 km

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