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=== Principle of operation === | === Principle of operation === | ||
The relationship between current, voltage, and resistance in an electrical circuit is fundamentally described by Ohm's Law, which states that current (I) is equal to the voltage (V) divided by the resistance (R). In formulaic terms, this is expressed as I = V/R. Essentially, this means that the electric current flowing through a circuit is directly proportional to the voltage applied across it and inversely proportional to the resistance within the circuit. When the voltage increases, the current increases, provided the resistance stays constant. Conversely, if the resistance increases while the voltage remains constant, the current will decrease. | The relationship between current, voltage, and resistance in an electrical circuit is fundamentally described by Ohm's Law, which states that current (I) is equal to the voltage (V) divided by the resistance (R). In formulaic terms, this is expressed as <math>I = V/R</math>. Essentially, this means that the electric current flowing through a circuit is directly proportional to the voltage applied across it and inversely proportional to the resistance within the circuit. When the voltage increases, the current increases, provided the resistance stays constant. Conversely, if the resistance increases while the voltage remains constant, the current will decrease. | ||
==== Effects of current on the human body ==== | ==== Effects of current on the human body ==== |