Ohms Law is a fundamental law of electrostatics that describes the relationship between current, voltage, and resistance in an electrical circuit. It states that the current through a conductor between two points is directly proportional to the voltage across the two points, provided that the physical conditions and temperatures remain constant. Ohms Law is expressed mathematically as I = V/R, where I is the current, V is the voltage, and R is the resistance.
Ohms Law is an empirical relation that accurately describes the conductivity of the vast majority of electrically conductive materials over many orders of magnitude of current. However, some materials do not obey Ohms Law, and these are called non-ohmic. Ohms Law is one of the basic equations used in the analysis of electrical circuits, and it applies to both metal conductors and circuit components specifically made for this behavior, such as resistors. Ohms Law is an extremely useful equation in the field of electrical engineering.
