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ELECTROMAGNETIC FIELD THEORY

Electromagnetic Field Theory
A loop antenna is a commonly used for

Satellite communication
All of these
Direction finding
Radar

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

Scalar
Vector
Unit vector
None of these

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Electromagnetic Field Theory
Which antenna is a wideband antenna?

Hertz antenna
Marconi antenna
Folded dipole
None of these

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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

Accelerating
Lagging the current
Oscillating
Retardation

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Electromagnetic Field Theory
The minimum height of outer atmosphere is

200 km
100 km
150 km
400 km

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