Do Displacement Currents Exist In Electric Motors

AI Thread Summary
Displacement currents do exist in electric motors, particularly in regions with changing magnetic fields where no conduction currents are present. While conventional theory suggests they influence the magnetic field output, their significance may vary based on motor design. Many motor designs may not consider displacement currents as relevant for performance evaluation. The discussion references Ampere's Circuital Law to support the existence of displacement currents. Ultimately, understanding their role in motor operation requires deeper insight into electromagnetic theory.
kmarinas86
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I am not asking if they are considered as input into the armature's magnetic field. I strongly believe they are NOT even considered when designing motors.

The question is, "DO THEY EXIST IN MOTORS?"

Based on evidence from conventional theory, it appears they do infact affect the output of the magnetic field, but to what degree will depend on the design of the motor. I believe that looking in most designs for motors will suggest the displacement current is irrelevant when determining the performance of the motor.

I am just looking for an answer from someone who knows about this better than I do.
 
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Any time there is a changing magnetic field in a region of space where there are no currents, there is a displacement current. So, yeah, there are displacement currents.
Ampere's Circuital Law.
 
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