electricity and magnetism class 12 notes [PDF]|Physics||NEB|

Here,in this post you will gets the notes of "Electricity and Magnetism for class 12".

Which contains following chapters:-

• Electrical Circuit

• Thermoelectric Effect

• Magnetic Field

• Magnetic Properties of Materials

• Electromagnetic induction

• Alternating Currents

 which is important chapter for NEB board exam.

Electricity and magnetism are two closely related phenomena that have been studied by physicists and scientists for centuries. While electricity is the flow of electric charge, magnetism is the force that arises between moving electric charges. Together, electricity and magnetism form the basis of modern electrical and electronic technology.

Electricity can be thought of as the flow of electric charge through a material or circuit. Electric charge is a fundamental property of matter, and can be either positive or negative. When two materials with different charges come into contact, electrons can transfer from one material to the other, creating an electric current.

Electricity has many practical applications in our daily lives, from powering our homes and businesses to driving our electronic devices. Electrical circuits, which are composed of conductive materials like copper wires and resistive materials like light bulbs and heaters, are used to control the flow of electricity and harness it for various purposes.

Magnetism, on the other hand, is the force that arises between moving electric charges. It can also be produced by magnetic materials such as iron, nickel, and cobalt. Magnetic fields are present around any object that has a magnetic moment, which is a property that arises from the alignment of electrons in the material.

Magnetism has many practical applications, including in the production of electricity. Electric generators, for example, use magnetic fields to convert mechanical energy into electrical energy. Magnetic fields are also used in medical imaging technologies like MRI machines, which use powerful magnetic fields to create detailed images of the inside of the body.

The relationship between electricity and magnetism is known as electromagnetism. Electromagnetic waves, such as radio waves, microwaves, and light waves, are produced when electric charges oscillate and create changing magnetic fields. These waves are used in a wide range of applications, including in communication technologies like radio and television.

In summary, electricity and magnetism are two closely related phenomena that have revolutionized our lives in countless ways. From powering our homes and businesses to driving our electronic devices and medical imaging technologies, electricity and magnetism have given us the ability to control and manipulate the world around us in ways that would have been unimaginable just a few hundred years ago.

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