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Theories and Laws ==>

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What Is Phase

RMS And Peak To Peak

Pulses

Pulse Modulation

Magnetism

Heat

Harmonics

Generator Principle

Filters

Electro Magnetism

Conductors And Insulators

Clippers And Limiters

Norton's Theorem

Thévenin's Theorem

Superposition Theorem

Frequency Modulation

The Right-hand Rule

Coulomb's Law

Gauss's Law

Ampere's Law

OHM's Law

Kirchoff's Current Law

Kirchhoff's Voltage Laws

23 topics total

RMS And Peak To Peak

Pulses

Pulse Modulation

Magnetism

Heat

Harmonics

Generator Principle

Filters

Electro Magnetism

Conductors And Insulators

Clippers And Limiters

Norton's Theorem

Thévenin's Theorem

Superposition Theorem

Frequency Modulation

The Right-hand Rule

Coulomb's Law

Gauss's Law

Ampere's Law

OHM's Law

Kirchoff's Current Law

Kirchhoff's Voltage Laws

23 topics total

It is best if you read the page on the Magnetism first. When a piece of wire is moved through a magnetic field, a voltage and current is induced in the wire. The same effect is obtained if the wire is stationary and the field is moved. The direction of current flow is determined by the direction of the field, and the direction of the movement. The amplitude of the voltage is determined by the rate at which the wire cuts the lines of force. Increasing the density of the field or increasing the speed of the wire therefore increases the voltage. This principle is used in the electric generator, where a coil is rotated in a magnetic field to generate electricity. It is also used in the moving coil microphone, where sound causes a coil to vibrate in a magnetic field, generating voltages which represent the sound waves. The Electric Motor Principle is related. It relies on passing a current through a wire in a magnetic field to provide movement |

Keywords : Generator, Electric, Electronic, Magnetism, Generation, Field, Wire, Coil, Conductor

20 Oct 2006 Fri

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