What are dc motive and AC motor?

Concept: What dc motive points to is to use direct current source (be like: Dry cell, accumulator) electromotor; What AC motor points to is to use communication (be like: Domestic circuit, alternator) the electromotor of power source
Application: Dc motive and AC motor above all the structure is different, dc motive has commutator (two opposite half copper annulus) , AC motor does not have commutator
Dc motive is used in the circuit that low voltage asks commonly, if dynamoelectric bicycle uses dc motive namely,direct current source just can be carried, waiting like electric machinery of computer fan, radio cassette player again is
Distinguish a method: The mainest look have commutator, use what power source. Those who commutator uses direct current source is dc motive