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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

Some irons, when dug up, attract other metals. They are called MAGNETS. The reason that they are magnetic is that their DOMAINS are aligned.
One end of a bar magnet is the NORTH POLE, the other end the SOUTH POLE.
A rule of magnetism is that LIKE POLES REPEL, UNLIKE POLES ATTRACT.
A magnet is surrounded by an invisible MAGNETIC FIELD made of magnetic LINES OF FORCE. Lines of force pass through all materials including insulators. They pass through some more easily than others. These are said to have a lower RELUCTANCE. Iron has a lower reluctance than air. PERMANENT magnets are made of steel or steel alloys. Brass, copper and aluminum do not magnetise. |

Keywords : Magnetic, Filed, Magnetism, Electronic, Electronical, Electric, Pole, Iron

20 Oct 2006 Fri

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