Question

Calculate the energy consumed in a 500 watt bulb in 8 hours in kilowatt-hour and joules.​

Answer 1

Answer:

A 100 watt light bulb uses 100 watts of power. To convert the power in watts to kilowatt-hours, multiply 100 watts by 1 hour, then divide by 1,000 to find the energy usage in kWh. Energy = (100 × 1) ÷ 1,000 Energy = 100 ÷ 1,000 Energy = 0.1 kWh. If electricity costs $0.12 per kWh, then a 100 watt light bulb will cost 1.2 cents per hour that ...

Explanation: