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Magnetic forces, magnetic fields, and Faraday's law

Magnets and Magnetic Force

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Introduction to magnetism
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Magnetic force on a charge
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What is magnetic force?
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Cross product 1
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Cross product 2
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Magnetic force on a proton example (part 1)
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Magnetic force on a proton example (part 2)
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Magnetic force on a current carrying wire
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Magnetic field created by a current

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Magnetic field created by a current carrying wire
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What are magnetic fields?
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Magnetic force between two currents going in the same direction
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Magnetic force between two currents going in opposite directions
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Induced current in a wire
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Electric motors

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Electric motors (part 1)
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Electric motors (part 2)
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Electric motors (part 3)
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The dot product
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Dot vs. cross product
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Calculating dot and cross products with unit vector notation
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Magnetic flux and Faraday's law

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Flux and magnetic flux
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What is magnetic flux?
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Faraday's Law Introduction
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Lenz's Law
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Faraday's Law example
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What is Faraday's law?
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Emf induced in rod traveling through magnetic field
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Faraday's Law for generating electricity
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About this unit

Magnetic fields are extremely useful. The magnetic field of the Earth shields us from harmful radiation from the Sun, magnetic fields allow us to diagnose medical problems using an MRI, and magnetic fields are a key component in generating electrical power in most power plants. In this topic you'll learn about the forces, fields, and laws that makes these and so many other applications possible.