The formula for calculating amp draw in a circuit is based on which law?

The correct choice is related to Ohm's Law, which is fundamental in understanding how electrical circuits function. Ohm's Law establishes the relationship between voltage (V), current (I), and resistance (R) in an electrical circuit. The formula is expressed as V = I x R, which can be rearranged to solve for current: I = V / R.

This fundamental principle allows HVAC technicians to calculate the amp draw of electrical components in a circuit, enabling them to determine how much current the system is consuming under specific voltage and resistance conditions. Knowing this information is crucial for ensuring that circuits are not overloaded and that components operate efficiently within their rated specifications.

Faraday's Law pertains to electromagnetic induction and does not directly address the calculation of current in a circuit. Kirchhoff's Law deals with the conservation of charge and energy in electrical networks but is not specifically focused on calculating amp draw. Newton's Law pertains to the motion of objects and is outside the realm of electrical theory. Thus, Ohm's Law is the most applicable for calculating amp draw in HVAC systems.