The diagram represents one type of electric motor. Describe the function of part \( X \). (2 marks) --- 5 WORK AREA LINES (style=lined) ---
PHYSICS, M6 2016 HSC 20 MC
In the motor shown, the rotor spins clockwise, as viewed from point `P`, when connected to a DC supply.
What happens when the motor is connected to an AC supply?
- There is no movement of the rotor.
- The rotor produces clockwise movement only.
- The rotor vibrates at the frequency of the AC supply.
- The rotor continuously turns half a rotation clockwise, then half a rotation anticlockwise.
PHYSICS, M6 2018 HSC 10 MC
The diagram shows some parts of a simple DC motor.
Which row of the table correctly describes the direction of force acting on side `WX` and the direction of torque this produces on the coil?