All of the Following Statements About DC Brushless (DCBL) Motors

question 4

Multiple Choice

All of the following statements about DC brushless (DCBL) motors are true EXCEPT:

• A)A typical DCBL motor is 85-90 percent efficient, and higher efficiencies have been produced.
• B)As a DCBL rotor turns, its permanent magnetic fields interact with the stator's electromagnetic fields.
• C)Magnetic attraction pulls the rotor along in its continuing rotation, causing torque output.
• D)Maximum torque production of a DCBL motor occurs immediately, from when it starts until about 3,000 rpm.

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Definitions:

Suicide

The act of intentionally causing one's own death, often rooted in complex factors including psychological, environmental, and social issues.

Cognitive Development

The process by which individuals perceive, think, and gain an understanding of their world through the interaction and influence of genetic and learned factors.

Formal Operations

Piaget’s final stage of cognitive development, characterized by the ability to think abstractly.

Piaget

Refers to Jean Piaget, a Swiss psychologist known for his pioneering work in child development and his theory of cognitive development.