Electromagnets

Electromagnets are used in 3 main ways in our society: 1) electromagnets are a workhorse in billions of electric motors that we see all around us, 2) electromagnets are used in many scientific and medical applications, like the particle colliders and MRI machines, and 3) electromagnets are a simple thing to make for kids science experiments – a battery and a coil of wire becomes an electromagnet.

How do electromagnets work?

How does an Electromagnet Work?
Electromagnets – How Do They Work?

Can any battery be used to make an electromagnet? Why or why not?

As long as the battery can produce a voltage and a current, it can be used. The amount of voltage and current will influence the strength of the electromagnetic field. These videos show a variety of batteries.

DIY Button Battery Homopolar Motor – Science Experiment
Easy-to-Build Electromagnet lifts over 50 lbs
How to make a Powerful Electromagnet (5KG LIFTING)

Where is the magnetic field created in an electromagnet?

The magnetic field forms around the wire carrying a current. By coiling the wire, it amplifies the effect.

Magnetic Field Around Straight Conductor – Electric Current and its Effects (CBSE Grade 7 Physics)
Magnetic Field of a Wire
Magnetic Field of a Coil

Why is a magnetic field generated around the electromagnet?

Magnets and Electromagnets
Electromagnet – Explained

Is an electromagnet a temporary or permanent magnet? Why?

In an electromagnet, the magnetic effect turns on when current flows through the wire and turns off when the current stops. In a permanent magnet, the magnetic effect is always there.

MAGNETS: How Do They Work?
How special relativity makes magnets work

Why doesn’t an electromagnet short circuit?

Why Electromagnet doesn’t Short Circuit ?
Inductors Explained – The basics how inductors work working principle

Bonus

10 SIMPLE MAGNET TRICKS!
MAGNETS | How It’s Made
How SuperMagnets are made

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