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What are the benefits of a brushless motor's lack of friction and voltage drop?

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Final answer:

The lack of friction in a brushless motor allows for increased efficiency and performance. Additionally, the presence of a back emf reduces the voltage drop and current drawn by the motor, resulting in energy savings.

Step-by-step explanation:

When a brushless motor operates, it does not experience frictional losses like a brushed motor does. This lack of friction allows the brushless motor to operate more efficiently, resulting in higher energy savings and increased overall performance. Additionally, brushless motors have a lower voltage drop due to the presence of a back electromotive force (emf). This back emf opposes the driving emf and reduces the amount of current drawn by the motor. As a result, the motor consumes less energy and operates at a more stable voltage.

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