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How does a toaster work?

A clear, basic explanation that applies to other household appliances that heat up (hair dryer, iron electric heater).

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Hits: 3652

Ridiculously Sensitive Charge Detector

Using a Field Effect Transistor (FET) to detect external electric fields. A circuit is built and tested.

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Hits: 2446

Deflection of Charges

The site gives a practical demonstration of the deflection of a charge in an electric field.

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Hits: 1045

The Blender

A history of the electric blender, invented by Stephen J. Poplawski in 1922.

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Hits: 772

Which way does electricity REALLY flow?

Details of what electric current is and how it is measured. The site corrects many misconceptions about electricity.

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Hits: 4123

hyperphysics

Voltage

Voltage is electric potential energy per unit charge, measured in joules per coulomb ( = volts).

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Hits: 2200

Electric Resonance

Resonance in AC circuits implies a special frequency determined by the values of the resistance, capacitance and inductance.

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Hits: 2238

Magnetic fields due to electric currents

Shows magnetic field patterns for wire, single turn coil and solenoid.

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Hits: 2247

Electric Circuits

A basic introduction to electronic circuits.

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Hits: 2279

Efield

EField allows users to simulate the motion of charged particles moving under the influence of electric fields. A static magnetic field in the z direction is also allowed .

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Hits: 1245

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