Electricity: directional movement of electrons due to some imbalance of force.
The flow of electrons is measured in units called amperes or amps for short. An amp is the amount of electrical current that exists when a number of electrons, having one coulomb of charge, move past a given point in one second.
The force that causes the electrons to move in an electrical circuit is called the electromotive force, or EMF. Sometimes it is convenient to think of EMF as electrical pressure. In other words, it is the force that makes electrons move in a certain direction within a conductor. The unit of measure for EMF is the volt. One volt is defined as the electrostatic difference between two points when one joule of energy is used to move one coulomb of charge from one point to the other. A joule is the amount of energy that is being consumed when one watt of power works for one second. This is also known as a watt-second.
Resistance is the opposition of a body or substance to the flow of electrical current through it, resulting in a change of electrical energy into heat, light, or other forms of energy. The amount of resistance depends on the type of material.
So, the properties are (Flow), (Force), and (Opposition) ... which can also be stated as (Current), (Potential), and (Resistance), measured in Amperes, Volts, and Ohms.
The law is Ohm's Law: which states
(Volts) = (Amperes) * (Ohms)
2007-01-11 06:58:55
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answer #1
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answered by CanTexan 6
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resistance, volts, amps - ohm's law
2007-01-11 06:48:46
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answer #2
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answered by mybutterfliesarentdead 1
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