# What exactly is an electromagnetic wave?

## What exactly is an electromagnetic wave?

Definition: Electromagnetic waves or EM waves are waves that are created as a result of vibrations between an electric field and a magnetic field. In other words, EM waves are composed of oscillating magnetic and electric fields. They are also perpendicular to the direction of the EM wave.

What is Electromagnetic waves short answer?

Definition: Electromagnetic waves or EM waves are waves that are created as a result of vibrations between an electric field and a magnetic field. In other words, EM waves are composed of oscillating magnetic and electric fields. …

### What is electromagnetic wave example?

Radio waves, microwaves, visible light, and x rays are all examples of electromagnetic waves that differ from each other in wavelength. These waves are also called “electromagnetic radiation” because they radiate from the electrically charged particles.

What is an electromagnetic wave kids definition?

Electromagnetic waves are a form of energy waves that have both an electric and magnetic field. Electromagnetic waves are different from mechanical waves in that they can transmit energy and travel through a vacuum. Electromagnetic waves are classified according to their frequency.

#### What does electromagnetic wave refraction mean?

Refraction, in physics, the change in direction of a wave passing from one medium to another caused by its change in speed. The electromagnetic waves constituting light are refracted when crossing the boundary from one transparent medium to another because of their change in speed.

What produces an electromagnetic wave?

Electromagnetic waves are produced whenever electric charges are accelerated. This makes it possible to produce electromagnetic waves by letting an alternating current flow through a wire, an antenna. The frequency of the waves created in this way equals the frequency of the alternating current.

## What are electromagnetic waves Class 10?

Therefore Electromagnetic waves are defined as the waves formed by an oscillating or varying magnetic and electric field so that they are perpendicular to each other and also perpendicular to the direction of propagation. The equation of EM waves are obtained from the solutions of Maxwell’s equations. 1.

What is electromagnetic wave Class 12?

Electromagnetic waves are those waves in which electric and magnetic field vectors changes sinusoidally and are perpendicular to each other as well as at right angles to the direction of propagation of wave.

### Why it is called electromagnetic waves?

The waves of energy are called electromagnetic (EM) because they have oscillating electric and magnetic fields. If it has low frequency, it has less energy and could be a TV or radio wave. All EM energy waves travel at the speed of light. No matter what their frequency or wavelength, they always move at the same speed.

What is the electromagnetic spectrum simple definition?

electromagnetic spectrum, the entire distribution of electromagnetic radiation according to frequency or wavelength. The electromagnetic spectrum comprises the span of all electromagnetic radiation and consists of many subranges, commonly referred to as portions, such as visible light or ultraviolet radiation.

#### What is electromagnetic energy in simple words?

Electromagnetic energy is a form of energy that is reflected or emitted from objects in the form of electrical and magnetic waves that can travel through space.

What produces electromagnetic?

electromagnetic wave. noun Physics. a wave produced by the acceleration of an electric charge and propagated by the periodic variation of intensities of, usually, perpendicular electric and magnetic fields.

## What are the 7 types of electromagnetic waves?

There are 7 regions in the electromagnetic spectrum and they are gamma rays, x-rays, ultraviolet, visible light, infrared, microwaves and radio waves.

What are electromagnetic waves have the highest energy?

Electromagnetic waves have an extremely wide range of wavelengths, frequencies, and energies. The highest energy form of electromagnetic waves are gamma (γ) rays and the lowest energy form are radio waves. The figure below shows the electromagnetic spectrum, which is all forms of electromagnetic radiation.

### What causes electromagnetic waves?

Electromagnetic waves are caused by electronic devices nearby. Tiny electrical currents exist in the human body which can react with the electromagnetic waves. For example, nerves transmit electric impulses to the brain which can later be affected by the electromagnetic wave and have a positive charge.