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Moving coil linear actuator

This animation shows the cross section of a moving coil actuator of cylindrical geometry. The flux density B is radially directed in the air gap. The solenoidally-shaped coil carries current whose direction may be reversed. Depending on the direction, the coil may be moved to the left or the right , in accordance with Faraday's BIi force rule.

This is a Java Applet created using GeoGebra from - it looks like you don't have Java installed, please go to

© M. Riaz