🔍 Key Concepts

• AC induction motor basic principle: rotating magnetic field inducing current in rotor conductors • Meaning of slip in an induction motor and how it affects torque and power • Difference between AC induction motor components and DC machine components (interpoles, field excitation)

💭 Think About

• Which choice directly involves the induced rotor current that creates torque and power in an induction motor? • Are all of these choices actually found or used in an AC induction motor, or do some belong to DC motors? • How does changing slip affect rotor current, torque, and therefore the power developed by the motor?

✅ Before You Answer

• Confirm which option is specifically tied to induced rotor current and torque production in an induction motor • Eliminate any options that describe features of DC motors rather than AC induction motors • Check your understanding of slip: the difference between synchronous speed and rotor speed, and how that difference relates to power developed