A Diametric HPG/HPM

[broli]

GB how is it that a stationary wire piece has an emf induced? This is basic hp theory  . In a motor the stationary part causes the torque whereas the moving part causes the back emf. In a generator it's the reverse. So how can the stationary part be inducing an emf?

[gravityblock]

GB how is it that a stationary wire piece has an emf induced? This is basic hp theory  . In a motor the stationary part causes the torque whereas the moving part causes the back emf. In a generator it's the reverse. So how can the stationary part be inducing an emf?

Induced or not induced, it has an EMF in that part of the circuit.  Are you telling me the stationary circuit has no voltage or current flowing through it, or there is no charge separation in order to have an EMF?  Fact is, there is an equal and opposite EMF there, regardless if it is stationary.

GB

[broli]

Induced or not induced, it has an EMF in that part of the circuit.  Are you telling me the stationary circuit has no voltage or current flowing through it, or there is no charge separation in order to have an EMF?

GB

Induced means generated by homopolar action, I'm saying a stationary circuit part cannot have an induced emf. Emf occurs when charge is moving, this movement forces an attraction or repulsion from the surface current of the magnet this force in turn causes emf which makes current flow. Stationary circuit parts however can torque the magnet. That is only if one part of the circuit is attached to the magnet, if it wasn't the torque on the magnet cancels. This is basic stuff gb.

[gravityblock]

Induced means generated by homopolar action, I'm saying a stationary circuit part cannot have an induced emf. Emf occurs when charge is moving, this movement forces an attraction or repulsion from the surface current of the magnet this force in turn causes emf which makes current flow. Stationary circuit parts however can torque the magnet. That is only if one part of the circuit is attached to the magnet, if it wasn't the torque on the magnet cancels. This is basic stuff gb.

I know what induced means.  I don't care if the current in the stationary external circuit is induced or not.  It has an EMF to cause the current to flow from the rotating brush circuit.  Voltage and current is flowing through this stationary circuit, right?  Then there must be an EMF there, regardless if it was induced on the disc, it is now pointing in the opposite direction in the stationary circuit.   

GB