Ohm’s Law is a fundamental principle in electrical engineering and physics that describes the relationship between voltage, current, and resistance in an electrical circuit.
It is represented as follows:
V = I × R
where:
- V represents the voltage (in volts, V) across a component in the circuit.
- I represents the current (in amperes, A) flowing through the component.
- R represents the resistance (in ohms, Ω) of the component.
Ohm’s Law asserts that the current passing through a conductor between two points is directly proportional to the voltage across the two points and inversely proportional to the resistance. In other words, if you increase the voltage across a component with constant resistance, the current will also increase proportionally.
Conversely, if you increase the resistance while keeping the voltage constant, the current will decrease proportionally.