Magnetic force on current carrying conductor

[Muhammad Umair Khan]

By principle of Lorentz Force, a current carrying conductor experiences a force if kept in a magnetic field. Then if the conductor is not allowed to move, does the magnet providing the magnetic field also experience an equal and opposite force on itself?

 

[Harald Kapp]

Naturally according to Newton's third law.

 

[Muhammad Umair Khan]

Naturally according to Newton's third law.

I was having doubts because I have never seen this in any kind of motor construction. Practically, Its always the conductor that is moving.
I am designing a different kind of motor that may reply on the magnet moving instead of the conducting coil

 

[Harald Kapp]

Practically, Its always the conductor that is moving.

Take a brushed motor, hold it by the axle, the case will turn -> moving magnets.

I am designing a different kind of motor that may reply on the magnet moving instead of the conducting coil

No need to reinvent the wheel: look at synchronous motors, the rotor of which can be made from either permanent magnets or electromagnets.

 

[Muhammad Umair Khan]

Take a brushed motor, hold it by the axle, the case will turn -> moving magnets.
.

Thanks a lot. Your reply has provided the required reassurance. Not reinventing the wheel but the design is application specific and needs to be tweaked as such.

 

[BobK]

Brushless motors generally have the coils fixed and the magnets moving.

bob

 

[Bluejets]

Induction motors have aluminium coils in the rotor.