martes, 29 de marzo de 2011

Ohm's Law

Ohm's Law states that the current flowing through an electrical conductor is directly proportional to the voltage and inversely proportional to the resistance as long as their temperature remains constant.

The mathematical equation describing this relationship is:

I = V / R

                        

Where I is the current passing through the object in amperes, V is the potential difference of the terminal object in volts and R is the resistance in ohms (Ω). Specifically, Ohm's law says that the R in this relationship is constant regardless of the current.

This law is named for German physicist Georg Ohm, who in a treatise published in 1827, found values ​​of voltage and current passing through some simple circuits containing a large number of cables. He filed a slightly more complex equation as mentioned above to explain the experimental results. The above equation is the modern form of Ohm's law.

 
 

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