Kaplan Nursing Entrance Practice Exam

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When 110 volts is combined with 8 amperes, the result in watts is?

880 watts
11.8 watts
8800 watts
110 watts

The correct answer is: 880 watts

To determine wattage when voltage and current are known, you utilize the formula for electrical power, which states that power (in watts) equals voltage (in volts) multiplied by current (in amperes). In this scenario, you have 110 volts and 8 amperes. Applying the formula: Power (Watts) = Voltage (Volts) × Current (Amperes) Substituting the given values: Power = 110 volts × 8 amperes = 880 watts. This calculation demonstrates that when you multiply the voltage by the current, you arrive at 880 watts, confirming that the initial answer is correct. Understanding the relationship between voltage, current, and power is crucial in electrical engineering and physics, as it allows for the evaluation of electrical circuits and devices.