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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.Current
( 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.Voltage
( 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.Resistance
( 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![](https://www.the12volt.com/images/omegad.gif)
Power
( 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 and Formulas
![Ohm's Law](https://www.the12volt.com/12voltimages/ohmtable.gif)
![Ohm's Law](https://www.the12volt.com/12voltimages/ohmtable.gif)
Mobile Electronics Basics:
• Diodes
• Glossary of Terms and Definitions
• Ohm's Law
• Recommended Books & DVD's
• Recommended Wire Sizes
• Relays
• Resistors
• Tools and Equipment
• Diodes
• Glossary of Terms and Definitions
• Ohm's Law
• Recommended Books & DVD's
• Recommended Wire Sizes
• Relays
• Resistors
• Tools and Equipment
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