Electromagnetic Field Theory
In a perfect conductor the incident and reflected wave combine to produce

A stronger reflected wave
A standing wave which is not progressing
None of these
A stronger incident wave

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Electromagnetic Field Theory
The developed electromagnetic force and or torque in electromechanical energy conversion system act in a direction that tends

 to decrease the co-energy at constant mmf.
 to decrease the stored energy at constant mmf.
 to decrease the stored energy at constant flux.
 to increase the stored energy at constant flux.

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