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Electromagnetic Induction Working Model for Class 12

INTRODUCTION

Electromagnetic induction is a fundamental principle of physics, first discovered by Michael Faraday. It explains how a changing magnetic field can induce an electric current in a conductor. This principle is widely used in electrical engineering, from power generation to wireless charging.

For Class 12 students, an electromagnetic induction working model serves as an excellent physics project working model for practical demonstrations and science exhibitions. This hands-on experiment helps students understand the concept of electromagnetic induction in an interactive and engaging way.

COMPONENTS USED

  • Battery
  •  Battery Clip
  • Transistor- 2N2222A
  • Resistor- 27K ohm
  • 30 Gauge Insulated Copper Wire
  • LED Blub
  • Switch

Working

“The resistor, inductor, and transistor form an oscillator circuit, which converts DC into AC. When AC flows through the coil, it generates an alternating magnetic field. This alternating magnetic field induces an AC in the secondary coil, similar to a transformer. The connected LED blinks rapidly due to the high frequency, making it appear as though it is glowing continuously.”

Application

  • Practical Demonstrations: It provides a clear visualization of electromagnetic induction in action, making it easier to understand theoretical concepts.

  • Science Exhibitions: A great way to showcase real-world applications of physics in an engaging manner.

  • Understanding Electrical Generators and Transformers: This model serves as a foundation for learning how electricity is generated and transmitted in power stations.

  • Wireless Charging: A stepping stone to understanding modern technologies like wireless power transfer.

Conclusion

An electromagnetic induction working model is an effective physics project working model for Class 12, demonstrating key principles in electromagnetism. It is easy to make, highly educational, and useful for science exhibitions. By experimenting with this model student can easy understand the concept of Transformer and Wireless Power Transmitter.

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