Resistors

A Resistor is an electrical device that resists the flow of electrical current.

• It creates a drop in voltage between two points.
• Resistors rely on something called Ohm's Law, which maintains that the voltage shift or potential difference between two ends of a conductor is held in proportion to the current moving through the conductor.
• Resistors do not have polarity. You can connect them in any direction you like.

http://dreamsyntax.org/arduino/resistors.jpg

See also

• Electronics
• Electron Theory
• Ohm's Law
• Resistors
• Capacitors
• Semiconductors