Kilowatt: Electricity Unit of Energy - 10kWh, 10units, 5kW, 1hr & 1kW

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In summary, the Kilowatt Hour is a unit of electrical energy and 10kWh can be equal to 10 units. This can also be expressed as 1kW for 10 hours or 5kW for 2 hours. The "h" in kWh stands for hours and in order to get 10kWh, 5kW must be used for 2 hours.
  • #1
da-outcast
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The Kilowatt _____1_____ is often referred to as the unit of electrical energy. 10kWh = ___2____ units, which could be 10 ____3____ for 1 hour, or 5kW for ___4____ hours, or ____5____ kW for 10 hours.

All i could get were

2 = 10 units
5 = 1kW
 
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  • #2
Is this really a college course? I can only say I hope the problems are going to get harder!

What do you think the "h" in kWh stands for?

You got 5 correct: 1 kW for 10 hours= 10 kWh of electrical energy.

Now think: 5 kW for how many hours= 10 kWh (In other words: 5 times what equals 10!) (that's number 4.)

Number 3, "10 ____3____ for 1 hour" is asking for the units.
10 *1= 10 so what units times hours gives kWh?
 
  • #3

4 = 2 hours
1 = 1kW
3 = 1 hour

The Kilowatt is a unit of measurement for electrical energy, and is often used to measure the amount of electricity used in a given period of time. In this case, 10kWh is equivalent to 10 units, which could be used for 1 hour at a rate of 10kW, or for 2 hours at a rate of 5kW. Alternatively, it could also be used for 10 hours at a rate of 1kW. This demonstrates the flexibility of the Kilowatt unit and its ability to measure energy usage in various time frames.
 

1. What is a Kilowatt?

A kilowatt (kW) is a unit of power, which is the rate at which energy is consumed or produced. It is equal to 1,000 watts.

2. What is the relationship between Kilowatt and electricity?

Kilowatts are commonly used to measure the amount of electricity being used or produced. The more kilowatts used, the more electricity is being consumed.

3. How is Kilowatt related to other units of energy?

Kilowatt is a unit of power, while other units of energy such as kilowatt-hour (kWh) and joule (J) measure the amount of energy consumed or produced over time. Kilowatt-hour is commonly used to measure electricity usage on a household level.

4. What is the difference between 10kWh and 10kW?

10kWh refers to the amount of energy consumed or produced over a period of one hour, while 10kW refers to the rate at which energy is being consumed or produced per hour. In other words, 10kWh is a measure of energy, while 10kW is a measure of power.

5. How do Kilowatts relate to the concept of energy efficiency?

Kilowatts can be used to measure the efficiency of energy usage. The lower the number of kilowatts used to produce a certain amount of energy, the more energy efficient the process is.

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