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ELECTROMAGNETIC FIELD THEORY

Electromagnetic Field Theory
A loop antenna is a commonly used for

Satellite communication
Direction finding
All of these
Radar

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

Unit vector
None of these
Vector
Scalar

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Electromagnetic Field Theory
Which antenna is a wideband antenna?

None of these
Marconi antenna
Hertz antenna
Folded dipole

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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
Retardation
Oscillating
Accelerating

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Electromagnetic Field Theory
The minimum height of outer atmosphere is

150 km
400 km
200 km
100 km

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