How do you determine the wattage of a device using current and voltage?

To determine the wattage of a device using current and voltage, you multiply the voltage by the current (measured in amperes). This relationship is described by the formula:

Wattage = Voltage × Amperage.

This formula is derived from the definition of electrical power in an electrical circuit. Power (in watts) represents the rate at which energy is used or generated, and it is dependent on both the voltage across the device and the current flowing through it.

In practical terms, if you have a device operating at a voltage of, for example, 120 volts and drawing a current of 2 amperes, you can calculate the power consumption as follows:

Wattage = 120 volts × 2 amperes = 240 watts.

This understanding is fundamental in electrical applications, enabling technicians and engineers to assess the power requirements and ensure devices are functioning within their designed specifications.