Khan Academy
Khan Academy: Electric Motors (Part 3)
The final video in a series of videos that finishes the explanation of how a commutator will allow a loop of wire to continue spinning in a magnetic field. Understand how this spinning magenta field allows work to be done known as an...
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: Inverse Square Law (Deflection Method)
An experiment to try to measure the change in the force of a magnet over a distance using the deflection of a compass. What is wrong with this approach?
Khan Academy
Khan Academy: Inverse Square Law (Method of Oscillation)
Here we compare the speed of compass oscillation vs. distance from a magnet. What kind of relationship do we observe? Is it linear? [2:08]
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.
Mocomi & Anibrain Digital Technologies
Mocomi: Magnetic Powers of Different Magnets
The video demonstrates an experiment using magnets to recognize that different magnets have different strengths and uses. [0:57]