Which of the pictured motors is a square core shaded pole motor used to drive very small electrical loads and is non-reversible. Illustration EL-0208

Correct Answer: Option D — B

Shaded pole motors utilize a copper shading coil on a portion of the stator pole to create a phase shift, producing the rotating magnetic field required for starting. These are inherently low-torque, non-reversible, and typically found in small, fractional-horsepower applications like cooling fans or small pumps.