# Electromagnetic Theory Handwritten Notes PDF

The study of electromagnetic fields and how they interact with electric charges and currents is the focus of the subject of physics known as electromagnetism, commonly referred to as electromagnetic theory.

## Electromagnetic Theory Handwritten Notes PDF Summary

Understanding electromagnetic theory is important for many fields, such as electrical engineering, telecommunications, optics, and many branches of contemporary physics.

It serves as the basis for several technologies, including electromagnetic imaging, wireless communication, and power production.

Scientists and engineers may design and improve a wide range of things that are essential to our everyday lives by researching and using electromagnetic theory.

The basic interactions between charged particles, such as the attraction between opposing charges and the repulsion between similar charges, are explained by electromagnetic theory.

James Clerk Maxwell developed Maxwell’s equations, which form the basis of electromagnetic theory. The behavior of electric and magnetic fields, as well as how they interact with charges and currents, are described by four differential equations.

These are the equations:

• a. Gauss’s Law for Electric Fields: ∇⋅E = ρ/ε₀
• b. Gauss’s Law for Magnetic Fields: ∇⋅B = 0
• c. Faraday’s Law of Electromagnetic Induction: ∇×E = -∂B/∂t
• d. Ampere’s Law with Maxwell’s Addition: ∇×B = μ₀J + μ₀ε₀∂E/∂t