Current Electricity

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In this video, Salman Khan of Khan Academy explains magnetism and magnetic fields due to current. Part 6 of 12.

Interactive Java applets that can be downloaded or run from the website. Graphics are excellent. Covers several less common topics, e.g. in heat and thermodynamics.

Physics

Need to study for Physics? Here are some questions to help you out!!!

Detailed information using Kirchhoff's laws to analyze circuits.

This site provides links to topics including electromagnetic induction, electromagnetism, static electricity and electric circuits. Some more specific subjects include static electric charge, electric current, magnetic flux, and Faraday's law.

Mechanics and electricity and magnetism problems. A nice selection of practice problems with complete worked out solutions with explanations of each step.

In this video, Salman Khan of Khan Academy explains magnetism and induced current. Part 12 of 12.

Useful site for information about all of the different concepts pertaining to electric circuits.

This shows how to understand ohms law on the electron level. This shows the equation for current density and resistivity and how it relates to current and resistance. An example is given of determining the resistance of a copper wire.

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