According to Ohm's law, how can voltage be calculated?

Ohm's law states that the voltage (V) across a conductor is directly proportional to the current (I) flowing through it and the resistance (R) of the conductor, which can be summarized in the equation V = I x R. Therefore, to calculate voltage, you multiply the current (measured in amps) by the resistance (measured in ohms). This relationship is fundamental in the study of electrical circuits and helps in understanding how voltage, current, and resistance interact with each other.

When using this equation, it's important to remember that it illustrates how increasing resistance for a given current will result in an increase in voltage, and conversely, how an increase in current will require a higher voltage to maintain the same resistance. This principle is not only central to HVAC systems but also essential in various electrical applications.