Ohm’s law states that the current through a conductor between two points is directly proportional to the voltage across the two points. This relationship is often expressed as I = V/R, where I is the current, V is the voltage, and R is the resistance of the conductor. This law is named after Georg Simon Ohm, a German physicist who first formulated it in 1827. Ohm’s law is fundamental to the study of electrical circuits and is used to calculate the behavior of resistors, capacitors, and other electrical components.