What is the measurement unit for a quantity of electricity consumed?

The correct measurement unit for a quantity of electricity consumed is the Watt (W). Watts are a measure of electrical power and indicate how much energy is used over time. Specifically, one Watt is equivalent to one joule of energy consumed per second. This unit is essential in understanding electrical consumption, as it allows us to quantify how much energy appliances or devices use during their operation.

When considering the other options, voltage (V) measures the electric potential difference, not the amount of energy consumed. Current (A) represents the flow of electric charge, indicating the quantity of electrons passing a point in a circuit per second, but it does not measure energy consumption directly. Resistance (Ω) quantifies how much a material opposes the flow of electric current, which is also not a measure of energy consumed.

In summary, when discussing the consumption of electricity, the Watt is the appropriate unit to represent power consumed, making it the correct choice in this context.