Mammoth Memory

Motor effect

The motor effect is the term used when a current-carrying wire, in the presence of a magnetic field, experiences a force.

This can be demonstrated easily in a simple school experiment. Place a thin aluminium strip in between two opposing magnets.

Motor effect experiment set up

Apply an electric current through the aluminium foil.

Motor effect experiment when current is applied

You can see the aluminium strip move and, using Fleming's left-hand rule (used when electricity passes through a wire), you could have predicted it.

To be able to recall the meaning of "motor", remember the following:

This motor effect can be used to drive a motor

See the definition of motors.

This effect is used to drive electric motors, even cars.

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