Electromagnetic Field Theory
If the resistance of a conductor does not vary in accordance with the Ohms law it is known as

 bad conductor.
 reverse conductor.
 non - linear conductor.
 non - conductor.

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Electromagnetic Field Theory
The wave in wave guide has

Group velocity inversely proportional to wavelength
Larger wavelength than in the free space
Diminishing wavelength than in the free space
Larger frequency than in the free space

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