Which law describes the relationship between voltage, current and resistance?

Ohm's law is fundamental in electrical engineering and physics as it defines the relationship between voltage (V), current (I), and resistance (R) in a circuit. According to Ohm's law, the current flowing through a conductor between two points is directly proportional to the voltage across the two points and inversely proportional to the resistance of the conductor. This relationship is commonly stated in the formula: V = I × R.

Understanding this law is essential for analyzing electrical circuits, allowing engineers and technicians to calculate how much current will flow at a given voltage and resistance. This principle forms the basis for designing circuits and troubleshooting electrical components, making it a crucial concept in the study of electricity.

Other laws mentioned, like Faraday's law, focus on electromagnetic induction, Kirchhoff's laws apply to the conservation of charge and energy in electrical circuits, and Newton's second law relates to motion and force, which are not applicable in defining the relationship between voltage, current, and resistance.