Final answer:
A measurement of how much electricity is being used in 1 second is a watt, which is the power corresponding to one joule of energy per second. Electrical power is calculated as the product of current in Amperes and voltage in Volts.
Step-by-step explanation:
A measurement of how much electricity is being used in 1 second is a watt. A watt is a unit of power, which is energy used or given off per unit time; it is measured in joules per second (J/s). When you move one coulomb through one volt every second, you are using one joule of energy per second, which is equivalent to one watt. Therefore, electrical power is the product of current (in Amperes or A) and voltage (in Volts or V), and is denoted as P = IV. For example, if a household has a circuit breaker allowing a maximum current of 15 Amps at a voltage of 120 V, the maximum wattage would be 1,800 W (P = 15 A * 120 V).