Uses of Electromagnetic – Definition, Properties, Effects, and Application

Introduction

An electromagnetic is a magnet in which an electric current generates a magnetic field. Here are some examples of magnetic applications to aid in better student comprehension.

A transient magnet that operates with the aid of an electric current is what electromagnets are. It could easily modify an electromagnet’s magnetic field by varying the amount of electric current flowing through it. Its polarity could be varied by adjusting the electric current’s flow direction. Every day, electromagnets were employed for a variety of tasks. For instance, the enormous cranes used in garbage yards utilise electromagnets. Several electromechanical and electrical equipment also frequently use electromagnets. Below are a few typical applications.

Properties

Electromagnetic waves are magnetic fields containing vibrating electricity. This is where they transport energy over space or through matter. There are three key characteristics of electromagnetic waves that you’ll be aware of:

Frequency

• This quantity also referred to as “wave frequency,” refers to the number of waves that pass a fixed place in a particular period.
• Electromagnetic waves have frequencies in the thousands of waves per second to trillions per second range.

Wavelength

• The separation between waves’ peaks and adjacent waves.
•  An electromagnetic wave can have wavelengths as long as a playground or even as short as an atom’s diameter.

Electromagnetic Wave Effects

Our bodily cells and tissues are susceptible to various reactions from electromagnetic radiation. Let’s look at this procedure in detail:

Harm to living tissue and cells

• Electromagnetic radiation spans a broad spectrum of frequencies and includes the sun’s rays.
• As ultraviolet photons from the sun may penetrate our skin’s surface layers, they create consequences, including suntan and sunburn.
• Cancer could also result from cellular damage brought on by radiation.

Ionisation

• It must give a proper electron energy to leave an atom to become ionised.
• Two charged ions or particles are then created due to this action.
• Man-made or natural causes can create ionising radiation.

Applications

In our daily lives, electromagnetic waves are essential, particularly when it comes to communication technologies.

This is so that energy can be transmitted via electromagnetic waves, which can operate without a medium. Here are some examples of how electromagnetic waves are used in daily life.

Infrared waves:-

For purposes of communication, such as radio and television.

Microwaves:-

Used it for satellite television and to reheat food in a microwave.

Infrared:-

Utilised frequently in security cameras for night vision or to detect intruders.

Visible light:-

Used in optical fibres for communication and imaging in medicine.

Ultra-violet:-

The use of photochromic ink helps prevent banknote fraud. Under UV light, banknotes with just this security feature glow fluorescent.

X-rays:-

When the beams from an X-ray machine travel through the tissue to reveal bone structure, it is possible to diagnose injuries, track healing, and do other things by doing so.

A Gamma ray:-

• These rays are used in radiation therapy for cancer to eradicate cancerous tissue.

The Electromagnets are More Often Used for Domestic Purposes

• In domestic settings, magnetic usage is increasingly common.
• A few domestic electromagnets include an electric fan, an electric doorbell, an induction oven, magnetic locks, etc.
• The electromagnetic induction concept ensures that the motor rotates continuously so the fan’s blades or wings continue to move without any hindrance.

Even the Medical Sector Uses Electromagnets:

• Electromagnets are used in the medical industry as well. The MRI scan, also known as magnetic resonance imaging, is a technique that makes use of electromagnets.
• Using electromagnetism, the device can scan every single feature of the human body.

Explanation of Uses

You must be able to articulate the reasons why each type of EM wave is appropriate for the given practical application. Since the wavelengths, frequencies, as well as energies of each component of the electromagnetic spectrum, vary, they can each be used for a variety of purposes. The ability of the receiving end to absorb, reflect, transfer, and refract the wave determines how all of the uses or functions work. Food preparation involves absorption, while fiber optic transmission involves reflection.

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