Question 1 of 10
What does kWh stand for?
kWh stands for kilowatt-hour, a unit of energy.
Question 2 of 10
How is 1 kWh defined?
1 kWh is the energy consumed by a device with a power rating of 1 kilowatt (kW) over a period of one hour.
Question 3 of 10
What is another term for 1 kWh?
1 kWh is also known as one unit of electricity.
Question 4 of 10
How many Joules are in 1 kWh?
1 kWh = 36 x 10^5 Joules
Question 5 of 10
What is the formula for calculating kWh?
The formula for kWh is kW multiplied by time in hours.
Question 6 of 10
If a 2 kW appliance is used for 4 hours, how many kWh are consumed?
kWh = 2 kW * 4 hours = 8 kWh
Question 7 of 10
What unit is used to measure power?
Power is measured in watts (W) or kilowatts (kW).
Question 8 of 10
What device measures kWh consumption?
A kWh meter, also known as an energy meter, is used to measure power consumption.
Question 9 of 10
If electricity costs $0.10 per kWh and you use 100 kWh, what is the cost?
Cost = 100 kWh * $0.10/kWh = $10
Question 10 of 10
Which of the following is NOT a unit used for energy consumption?
VAh represents volt-ampere-hour, a unit of apparent energy, whereas kWh, MWh, and GWh are units of energy.
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