How is wattage calculated in electrical systems?

Wattage, which measures electrical power, is calculated by multiplying voltage (volts) by current (amperes). This relationship is derived from Ohm's Law and is fundamental in electrical systems.

In the formula, voltage represents the electrical potential difference between two points, while current denotes the flow of electric charge. By multiplying these two quantities, you arrive at wattage, which indicates the rate at which electrical energy is used or generated in a circuit.

This principle is essential for understanding how electrical devices operate and how much energy they consume. For example, a light bulb rated at 60 watts uses 60 joules of energy per second when connected to a standard voltage supply.

The other options do not accurately represent the relationship between watts, volts, and amperes, which is critical for correctly understanding electrical power calculations.