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Ohm's Law - It Rules!

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Ohm's Law

Ohm's Law defines the relationships between (P) power, (E) voltage, (I) current, and (R) resistance. One ohm is the resistance value through which one volt will maintain a current of one ampere.

( I ) Current is what flows on a wire or conductor like water flowing down a river. Current flows from negative to positive on the surface of a conductor. Current is measured in (A) amperes or amps.

( E ) Voltage is the difference in electrical potential between two points in a circuit. It's the push or pressure behind current flow through a circuit, and is measured in (V) volts.

( R ) Resistance determines how much current will flow through a component. Resistors are used to control voltage and current levels. A very high resistance allows a small amount of current to flow. A very low resistance allows a large amount of current to flow. Resistance is measured in

ohms.

( P ) Power is the amount of current times the voltage level at a given point measured in wattage or watts.

Ohm's Law:
• Ohm's Law Pie Chart
• Ohm's Law Calculators
• Test Equipment: Digital Multi Meter (DMM)

Ohm's Law

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Ohm's Law:
• Ohm's Law Pie Chart
• Ohm's Law Calculators
• Test Equipment: Digital Multi Meter (DMM)

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Saturday, May 18, 2013

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Basics • Car Audio • Car Security • Cruise Controls • Diodes • Door Locks • Ohm's Law • Passive Crossovers • Relays • Resistors • Subwoofer Enclosures

Application Guides • Calculators, Charts, Diagrams • Downloads/Manuals • Find Installers • Forums • Glossary • Subwoofer Wiring • Tools • Vehicle Wiring

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