Khan Academy
Khan Academy: Faraday's Law Introduction
How a current can be induced in a loop of wire by a change in magnetic flux? This video introduces students to Faraday's Law. [5:37]
Khan Academy
Khan Academy: Faraday's Law for Generating Electricity
Learn how Faraday's Law is used to generate electricity in turbines in this video. Explore how induced current can be used for an electro-motive force. [5:37]
Khan Academy
Khan Academy: Faraday's Law Example
A video investigating how to use Faraday's Law. See how to do an example of how to calculate induced current based on change in flux. [9:30]
Khan Academy
Khan Academy: Magnetic Field Created by a Current Carrying Wire
Watch how a wire carrying a current creates a magnetic field. [9:42]
Science Friday Initiative
Science Friday: The Poles, They Are a Changin'
A Florida airport recently had to close its main runway to repaint directional signs, due to the changing location of magnetic north. We'll talk about the planet's magnetic field.
Science Friday Initiative
Science Friday: Looking at Magnetic Fields in a Distant Galaxy
We'll talk with one of the scientists behind a project that used a radio telescope to peer back millions of years in time and make observations of the magnetic field present in a distant proto-galaxy.
Khan Academy
Khan Academy: Are Two Magnets Stronger Than One?
A brief experiment that looks at whether the power of two magnets stuck together will increase the overall force.
Khan Academy
Khan Academy: Discovery of Magnetic Fields: Magnetic Permeability
What happens to the magnetic field of a magnet in the presence of another material which is attracted to it? Why does this happen? [2:03]
Khan Academy
Khan Academy: Discovery of Magnetic Fields: Tracing a Magnetic Field
A compass will align with the lines of force around a magnet. How could you do this in three dimensions? [0:29]
Khan Academy
Khan Academy: Discovery of Magnetic Fields
Magnetic materials seem to have two sides (we could call them poles). Depending on orientation, they can be attractive or repulsive. What is the shape of the force between fields? [1:07]
Khan Academy
Khan Academy: Discovery of Magnetic Fields: Magnet Near Compass
An experiment exploring the effect of a permanent magnet on a compass. What is going on? [1:05]