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What Are the Special Features of Commercial Electric Motors?

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Question

What are the special features of commercial electric motors? 

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Solution

Special features of commercial electric motors are:

 The coil is wound on a soft iron core; therefore, the strength of magnetic field increases.

 The coil contains large number of turns of insulated copper wire.

 A powerful electromagnet is used in place of permanent magnet.

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Chapter 5: Magnetic Effects of Electric Current - Exercise 3 [Page 92]

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Lakhmir Singh Physics [English] Class 10
Chapter 5 Magnetic Effects of Electric Current
Exercise 3 | Q 22.2 | Page 92
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