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Learn about electric and magnetic fields on Khan Academy's comprehensive science platform.
Khan Academy
Discovery of magnetism: Discoveries and projects Discovery of magnetic fields: Discoveries and projects Measuring magnetic fields: Discoveries and projects Discovery of batteries: Discoveries and projects Discovery of electromagnetism: Discoveries and projects
What are magnetic fields? (article) | Khan Academy
Learn what magnetic fields are and how to calculate them. Skip to main content If you're seeing this message, it means we're having trouble loading external resources on our website.
Magnetic field lines (video) | Khan Academy
Let's explore what magnetic field lines are, why we draw them, and what their properties are. Here is the link to the simulation https://www.khanacademy.org/science/physics/discoveries/magnetic-fields/pi/tracing-a-magnetic-field
Magnetic field lines - Khan Academy
We do that by drawing lines everywhere. We call them the magnetic field lines. And so in this video we'll see exactly how to draw these magnetic field lines, and how we read them. So to start drawing magnetic field lines the first thing we need to do is …
Magnetism and magnetic fields (video) | Khan Academy
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 strongest where field lines are densest. All magnets have a north and south pole.
Magnetic dip & horizontal component of Earth's field - Khan …
The angle made by the Earth's magnetic field with the horizontal, in the magnetic meridian, is called the dip. The dip is zero close to the equator and 90 degrees close to the magnetic poles. The dip angle is useful in calculating the horizontal and vertical components of the Earth's fields.
Magnetic field due to a current-carrying solenoid - Khan Academy
Let's test our understanding of the magnetic field and field lines due to a current passing through a solenoid.
Khan Academy
Which of the following images correctly represents the magnetic field lines outside a magnet?