A 120 volt battery is rated at 800 amp-hours...

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Question 1 of 205eccefa3bacbc34ba4d47fa7

A 120 volt battery is rated at 800 amp-hours for a continuous 50 kW load. Approximately how long will the fully charged battery be able to supply a continuous 50 kW load before the battery can no longer maintain this discharge rate and is effectively discharged?

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🔍 Key Concepts

• Amp-hours (Ah) to watt-hours (Wh) conversion using voltage • Relationship between power (kW), energy (kWh), and time (hours) • Using P = V × I to relate current, voltage, and power

💭 Think About

• How can you convert the 800 amp-hour rating at 120 volts into total energy in watt-hours or kilowatt-hours? • Once you know the total energy in kWh, how do you find how many hours it can supply a 50 kW load? • After you get time in hours, how do you convert that to minutes and match it to the closest choice?

✅ Before You Answer

• Be sure to convert amp-hours (Ah) to watt-hours (Wh) using the battery voltage: Wh = Ah × V • Convert watt-hours to kilowatt-hours (kWh) before dividing by the 50 kW load • Double-check your hours-to-minutes conversion to align with the multiple-choice answers

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