Question

For a motor : a permanent magnet, then commercial motor : _______ (Fill in the blank)

Answer 1

Answer:

a permanent magnet

is good for motor

Answer 2

Dear Student,

That seems to be an interesting question.

◆ Answer -

For a motor : a permanent magnet, then commercial motor : an electro magnet

● Explaination -

• In a commercial motor, a permanent magnet are not enough to create sufficient magnetic field.
• Hence, an electromagnet is used in place of a permanent magnet in a commercial motor.

Thanks dear. Hope that helps you...