The equation for volts is fundamentally grounded in Ohm's Law and the principles of electrical power. To express volts, the correct equation relates voltage to power and current, which is defined as:
Volts (V) = Watts (P) / Amps (I)
This reflects the relationship between these electrical quantities, where power (in watts) is the product of voltage and current (P = V * I). Rearranging this equation to solve for voltage gives you volts as equal to the power divided by current.
This understanding is essential in the context of electrical systems and devices, allowing for the calculation of voltage given specific values of power consumption and current flow. Expressing volts in this manner is a standard practice in electrical engineering and ensures clarity in how electrical parameters relate to one another.