By Asiya Mumtaz
Mode of Power: AC motors are powered from AC current while DC motors are powered from dc current.
Conversion of Current: In AC motors conversion of current is not required whereas dc motors require conversion of current i.e from AC to DC in order to function properly.
Use of AC and DC motors: AC motorsare used where power performance is sought for an extended periods of time. DC motors are used where motor speed required to be controlled externally.
Number of Phases: AC motors can be single phase or three phases while all DC motors are single phase.
Costly Repairing: Repairing ofACmotors is not costly whereas repairing of DC motors is costly.
Use of Brushes: AC motor does notuse brushes; on the other hand DC motor uses brushes.
Life Span: AC motors have a longer life span while DC motors does not have longer life span.