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Electric motor (d.c)

This animation shows the opration of a simple d.c electric motor. You will notice that when the motor is switched on (by clicking on the start button) a current flows through the coil. However when the contacts of the commutator separate the current falls to zero and the coil rotates due to its own inertia.

 
 
 
© Keith Gibbs/John Bourne 2009