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"resistance", type: Website
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Good revision site aimed at UK A Level standard covering resistance, ohm's law, conductivity etc
Allows various configurations of resistors to be put together and their total resistance calculated.
Definition and links to related information on electrical resistance.
A useful animation to demonstrate the free electron model of current flow, showing electrical resistance in the copper wire of a lightbulb.
A BBC Bitesize page on resistance and Ohm's law.
A good explanation of electrical resistance, why it exists and the variables that affect it including wire length, width and material.
A simple program to help students calculate the resistance of a certain resistor. A very easy and simple site that works well and looks good.
A small interactive demonstration of current and resistance at the microscopic level.
Short summary for UK GCSE level.
Basics of electrostatics and properties of electricity. Ohm's Law and basic circuitry used to see the effect of resistance on current.
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