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 named after the German physicist Georg Simon Ohm, who formulated this law in the 1820s.
Ohm's law states that the current (I) flowing through a conductor between two points is directly proportional to the voltage (V) across the two points, provided the temperature and other physical conditions remain constant. Mathematically, Ohm's law can be expressed as:
V = I * R
where:
V is the voltage across the conductor in volts (V).
I is the current flowing through the conductor in amperes (A).
R is the resistance of the conductor in ohms (Ω).
In summary, Ohm's law states that the voltage across a conductor is equal to the current flowing through it multiplied by the resistance of the conductor. This law is fundamental for understanding and analyzing electrical circuits and plays a crucial role in designing and troubleshooting electronic devices and systems.