Movement from electricity
Electric bells and motors are commonly used devices. This bite takes you through the physics behind the operation of both of them. There are three subject areas in this bite: magnets and electromagnets, uses of electromagnets and the electric motor.
Work through them all or go to the ones that interest you. You may wish to print a hard copy for your reference.
The slideshow above uses ‘conventional current’ – this assumes that there is a flow of positive charges in the wire. Electron flow is in the opposite direction. If the slideshow used electron flow then the red arrow would move down.
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