Electric charge is a measure of the elementary particles that enable electrical and magnetic interactions. Electric charge, is the basis for Coulomb Law, and…

# Category: Electromagnetic Fields and Waves

**Electromagnetic Field****s**** and Waves****: Preface**

**Aim of the study element **

To explain the basic concepts of electrostatics, magnetism, electromagnet waves and fields, and to use this knowledge to solve complex electrical engineering problems, electrical devices and materials analysis.

**Learning outcome**

Having successfully completed this element you will be able:

- Understand and use the concepts of electrostatics.
- Understand and use the concepts of magnetism.
- Analyse electrical and magnetic
- Use main electro- and magnetostatic rules and theorems applied to real situations.
- Apply Maxwell equations to circuits.
- Use mathematical tools for circuits in an electromagnetic environment.

**Covered topics**

- Electric field – Columb law.
- Gauss theorem.
- Work in electrostatic fields.
- Conductors in electrostatic fields.
- Electric fields in insulators.
- Magnetic fields in a vacuum.
- Magnet induction.
- Electromotive force.
- Magnetic fields in compounds.
- Maxwell theory.

## Divergence theorem

The Coulomb Law and superposition principle can lead to divergence theorem which is valid for bilateral, axial and spherical charged objects. Let’s divide the…

## Electrostatic field and potential difference

We know how to find the potential difference between two points in the electrostatic field: φ1-φ2=∫12Eldl Let’s find out the reverse dependence - electrostatic…

## Conductors in the external electric field. Faraday’s law

This post is about Fardey's Law and conductor's behaviour and features in the external electric field. Let’s consider a case when the neutral conductor…

## Capacitors and capacitance

A capacitor is a system consisting of a two conductors, where an isolated electric field is created between two equal conductors , opposite charges.…

## Energy of a capacitor and an electric field

Elementary work of external forces to move charge dq in electric field of a capacitor dA=dq*(φ1-φ2)=dqqC Total work is A=∫0QdqqC=Q22C this work determines total…

## Dielectrics

We will cover the topic of dielectrics in the Electronic Materials chapter in detail. Here is a brief explanation of the main terms about…

## Magnetic interaction

In this chapter we will cover magnetic interaction. Magnetic interaction shows how charged particles are interacting with each other. A charge moving in a…

## Ampere law

The scientist Ampere has empirically discovered the interaction force for two parallel wires, dependent on the force being reversely perpendicular to the distance between…

## Magnetic induction vector circulation

There are two methods of magnetic induction B calculation. The first method is using the Biot-Savart-Laplace and induction superposition principle. The second method is…