Let's explore what magnetic fields are and why do we like to talk about them? Created by Mahesh Shenoy.

Explore the relationships between moving charges, the magnetic fields they generate, and the magnetic forces that act on other moving charges in those fields. Discover the natural …

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.

Magnetic fields are present around permanent magnets and electric currents. Magnetic fields create a magnetic force on other magnetic objects which enter the field. The magnetic force is …

Let's explore how to calculate the path of the charged particle in a uniform magnetic field.

Khan Academy ... Khan Academy

哎呀.出了错.请再试一试. 哦不, 看来我们遇到了一个错误. 请 刷新 该页面. 如果此问题仍然存在, 请 告诉我们.

Learn what solenoids are and why they're important. We will see that when we pass current through a solenoid, it produces a magnetic field similar to a bar magnet.

So in short today we represent the magnetic field by drawing imaginary lines called the magnetic field lines. These field lines tell us in what direction the north pole of the tiny magnet points.

In our article on the magnetic force we looked at the force experienced by moving charges in a magnetic field. The force on a current-carrying wire due to the electrons which move within it …