Electric Motor – Parts of Motor, Working of Electric Motor & Uses

Different Parts of an Electric Motor and Their Function

A simple motor has the following parts:

Read More: Electrical Energy

What Is The Working Principle of An Electric Motor?

The working of an electric motor is based on the fact that a current-carrying conductor produces a magnetic field around it. To better understand, imagine the following situation.

Take two bar magnets and keep the poles facing each other with a small space in between. Now, take a small length of a conducting wire and make a loop. Keep this loop in between the space between the magnets such that it is still within the sphere of influence of the magnets. Now for the last bit. Connect the ends of the loop to battery terminals.

Once electricity flows through your simple circuit, you will notice that your loop “moves”. So why does this happen? The magnetic field of the magnets interferes with that produced due to electric current flowing in the conductor. Since the loop has become a magnet, one side of it will be attracted to the north pole of the magnet and the other to the south pole. This causes the loop to rotate continuously. This is the principle of working of electric motor.

Types of Electric Motor

The primary classification of electric motors is as follows:

Uses of an Electric Motor

Electric motors are used in a variety of applications. Some of them are listed below.

• Drills
• Water Pumps
• Hard Disc Drives
• Washing Machines
• Industrial Equipment

You can expect the efficiency of a functioning motor to be around 70 – 85% as the remaining energy is wasted in heat production and sounds emitted.

Read More: Types of Motors

Frequently Asked Questions – FAQs

Which device converts mechanical work to electrical energy?

Generator is the device that converts mechanical work to electrical energy.

What is meant by electric motor?

An electric motor is used to convert electrical energy into mechanical energy.

What is the main function of armature core?

Armature core helps to hold the armature coil in place and provides mechanical support.

State true or false: Electric motors are used in hard disc drives.

True.

Give some examples where electric motor is used.

The electric motor is used in:

Faraday’s Law of Electromagnetic Induction Explained

Stay tuned with BYJU’S for more such interesting articles. Also, register to “BYJU’S – The Learning App” for loads of interactive, engaging Physics-related videos and unlimited academic assistance.

Test your Knowledge on Electric Motor

Q

5

Put your understanding of this concept to test by answering a few MCQs. Click ‘Start Quiz’ to begin!

Select the correct answer and click on the “Finish” button
Check your score and answers at the end of the quiz

Congrats!

Visit BYJU’S for all Physics related queries and study materials

Your result is as below

0

out of

0

arewrong

0

out of

0

are correct

0

out of

0

are Unattempted