You can think of a magnet as a bundle of tiny magnets, called magnetic domains, that are jammed together. Each one reinforces the magnetic fields of the others.

Explore the fundamentals of electromagnetism, including forces at a distance, with Khan Academy's comprehensive science resources.

What is a magnetic field? A magnetic field is a picture that we use as a tool to describe how the magnetic force is distributed in the space around and within something magnetic.

As shown in figure 1, the wire is placed in a vertical magnetic field and moved perpendicular to the magnetic field at constant velocity. Both ends of the wire are connected, forming a loop.

The magnetic field made by a current in a straight wire curls around the wire in a ring. You can find it by pointing your right thumb in the direction of the current in the wire and curling your …

Learn how to determine the magnitude and direction of the magnetic force experienced by a charge moving in a magnetic field.

A magnetic force is when magnetic forces (North and South Poles) interact with each other. This may be shown by movement (for an example: Your refrigerator magnet attracts, moves toward …

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When health care providers first turn on the MRI machine, a very strong, constant magnetic field forms that remains in place for the duration of the measurement, and this super-strong field …

Let's explore what magnetic field lines are, why we draw them, and what their properties are. Here is the link to the simulation …