What are the two main types of motors in EVs?

• A. AC and DC
• B. Hydraulic and pneumatic
• C. Single phase
• D. Universal

Answer: (A)

Motors in electric vehicles are categorized by the type of current they use. The main division is direct current motors and alternating current motors. This matters because the battery supplies DC, and most modern EV drivetrains use inverters to convert that DC into the AC needed by the traction motor. AC motors—such as induction motors or permanent magnet synchronous motors—deliver strong performance, high efficiency, and precise speed control through power electronics. Direct current motors (brushed or brushless) were used in some designs and can be simpler to control in certain setups, but today many EVs rely on AC traction motors for the best combination of efficiency and control. Hydraulic and pneumatic devices are actuators, not motors. Single phase refers to the type of electrical supply rather than a motor family. Universal motors can run on either AC or DC, but they are not the standard traction motor in EVs.