Electromagnetic Field Theory
A wire carrying current is bent in the form of a circular loop. Then the magnetic field around each portion of the wire will be

 none of above.
 parallel to the plane of the wire.
 parallel to half portion and perpendicular for the other half.
 perpendicular to the circumference of the wire.

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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 increase the stored energy at constant flux.
 to decrease the stored energy at constant flux.

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