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Physics Project Electric Motor

The project explores the working principle of electric motors, which convert electrical energy into mechanical energy through the interaction of a current-carrying conductor and a magnetic field. It involves constructing a simple motor using copper wire, a battery, and a magnet, demonstrating the motor effect and its applications in daily life such as in fans and electric vehicles. The conclusion emphasizes the significance of electric motors in modern technology.

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88 views3 pages

Physics Project Electric Motor

The project explores the working principle of electric motors, which convert electrical energy into mechanical energy through the interaction of a current-carrying conductor and a magnetic field. It involves constructing a simple motor using copper wire, a battery, and a magnet, demonstrating the motor effect and its applications in daily life such as in fans and electric vehicles. The conclusion emphasizes the significance of electric motors in modern technology.

Uploaded by

ty947148
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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Physics Project on Electric Motor and Its Principle

Name: Tanishq

Class: 11th

Subject Teacher: [Your Teacher's Name]

Objective
To study the working of an electric motor, understand its principle, and explore its applications in

daily life.

Apparatus / Materials Required


- Copper wire (enameled)

- Bar magnet

- Battery (1.5V or 3V)

- Switch

- Paper clips or support stand

- Rubber band / Tape

- Safety pins or metal clips

Theory
An electric motor is a device that converts electrical energy into mechanical energy. It works on the

principle that: "When a current-carrying conductor is placed in a magnetic field, it experiences a

force." This is explained by Lorentz Force Law and demonstrated using Fleming's Left Hand Rule:

- Thumb -> Direction of Force (Motion)

- Forefinger -> Direction of Magnetic Field

- Middle finger -> Direction of Current


The motor effect creates rotation by placing a coil inside a magnetic field. Opposite forces on each

side of the coil cause it to spin.

Construction
1. Wind copper wire into a small circular coil (about 15-20 turns).

2. Strip insulation at both ends of the wire.

3. Mount the coil using paper clips or metal pins so it can rotate.

4. Connect the ends of the coil to a battery via a switch.

5. Place a bar magnet below the coil.

6. Turn ON the current - the coil begins to rotate!

Working
When current flows through the coil:

- One side of the coil moves up, the other moves down due to the magnetic field.

- This creates a rotational motion.

- The commutator in actual motors reverses current to maintain rotation.

Applications
- Electric fans

- Washing machines

- Electric vehicles

- Mixers and grinders

- Electric trains

Conclusion
The project demonstrates how electric motors work on the principle of the magnetic force acting on

a current-carrying conductor. It is one of the most important devices used in almost every aspect of

modern technology.
Bibliography
- NCERT Class 11 Physics Textbook

- Internet Sources: Wikipedia, BYJU'S, Khan Academy

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