what is electric energy?

2006-11-12 11:01 pm
what is electric energy?
請用英文答 please!

回答 (4)

2006-11-12 11:08 pm
✔ 最佳答案
Electrical energy can refer to several closely related things. It can mean:

1)the energy stored in an electric field
2)the potential energy of a charged particle in an electric field
3)the energy provided by electricity

In any of these cases, the SI unit of electrical energy is the joule. The unit used by many electrical utility companies is the watt-hour (Wh) or the kilowatt-hour (kWh).
2006-11-12 11:11 pm
Many electrical appliances, such as computers and televisions, use electrical energy. Since electrical energy can be easily changed to other forms of energy and can be carried through wires, it is one of the most widely used energy forms. Most electrical appliances in our homes obtain electrical energy from the power station. Some small electrical appliance can obtain electrical energy from cells.
參考: IS book
2006-11-12 11:08 pm
Electrical energy can refer to several closely related things. It can mean:

the energy stored in an electric field
the potential energy of a charged particle in an electric field
the energy provided by electricity
In any of these cases, the SI unit of electrical energy is the joule. The unit used by many electrical utility companies is the watt-hour (Wh) or the kilowatt-hour (kWh).
2006-11-12 11:07 pm
First that is electrical energy.

Electrical energy is a energy form.


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