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Todays Electric Motor Today's electric motors use the same principles used in Faraday's first simple motor. The coils wrapped around the metal increase the strength of the fields. The two posts at the back of the motor are used to alternate the current so that even though the motor is spinning the current is always flowing the right direction to keep it moving. What would happen if the current didn't change directions in the center winding? What would happen if the wire was wound the wrong way on one of the areas? |