ElectricityIs

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ELECTRICITY is... What??


A flow of ELECTRONS.


So, WHERE DO ELECTRONS COME FROM ??? and,
WHERE DO ELECTRONS GO??? AND WHAT DO THEY LOOK LIKE??
ElectInv.gif

ANYWAY.. It works like this:

Electrons come from SOURCES and go to LOADS.
Source-Load-www.jpg
Examples:
The 220 Volt AC power in a wall outlet SOURCE goes to a 100 Watt Light Bulb LOAD.
The 12 Volt DC power from a car battery SOURCE goes to a 20 watt Tail Light Bulb LOAD.
The 3 Volt DC power from the two cell SOURCE in a flashlight goes to a 2 watt Flashlight Bulb LOAD.
The 4.8 Volt DC power from a Lithium Ion Battery SOURCE goes to a Digital Camera LOAD.

IMPORTANT ! !

LOADS must be matched to appropriate SOURCES or Bad Stuff Happens:

  • The LOAD doe not work properly, or at all. OR,
  • Ka-BOOM ! ! The LOAD is damaged or destroyed


CIRCUITS:

CIRCUITS connect SOURCES and LOADS together with CONDUCTORS. CONDUCTORS are usually wires, but may be any other conductive material such as a metal strap, the metal case of a flashlight, etc.
circuits-www.jpg

CIRCUITS can be simple, like a flashlight with one SOURCE connected in a circuit with one LOAD. Or, they can be very complex, like the wiring of Stage Lights, with many sources and many loads. Or they can be wicked complex, like a Pentium processor chip, with many millions of sources and loads.