Most appliances give you the watt rating, lets say it draws 50 watts, that's an hourly consumption. your electric company charges you per killowatt (1000 watts), so lets say you run the device 4 hours, you consume 200 watts or .2 killowatts. you look at your electric bill and see how many killowatts you consumed last month usually around 1000 to 3000. you take the total cost of the bill (say $200.00) and divide it by the killowatts used. (200/1739=.115/kw) that will be around 11 1/2 cents per killowatt. so you used 200 watts or .2 kw so you multiply that by .115= .2x.115=.023 or 2 1/2 cents to run that device for 4 hours. so you add up the hourly consumption of all the devices ( there is usually a label next to where the cord goes into the appliance) take your hourly killowatt rate explained above, remember that you are working with increments of 1000 watts per 11 cents. so your tv draws 15 watts so you can run that tv for 66 hours for 1 killowatt. (11 1/2 cents.). some utility companies like to confuse you with fuel charges and such, but what it boils down to how much did that 2000 kw cost you. if you pay 200 dollars for 2000 kw, that's your true cost. hope I didn't confuse you
A generator in a power plant converts rotating kinetic energy into electrical energy An electric motor is a device which changes electrical energy into kinetic. For example-- Fans could be like electric energy to kinetic energy...
The windmill would consume as much, or more energy than it could produce making it a unneeded and energy consuming device. There would be no advantage to this situation.
It could be, in certain circumstances, potential energy
You could for example drive an electric train up a mountain track, or you could raise a heavy weight using an electric crane.
A device that makes energy easier to use could be a power converter or energy transformer that changes the form of energy (such as from mechanical to electrical) for more efficient use.
a resistor
You could turn them off.
A device that transforms energy is a tool that changes one form of energy into another. This could be anything from a light bulb converting electrical energy into light energy, to a wind turbine converting wind energy into electrical energy.
Yes, the electric power grid could be powered by electric power generated through nuclear energy.
electric generator is a device which can send amount of electricity to different places
One method which this could happen is you have mechanical energy, lets say you riding a bike, and attach a turbine to it which converts your mechanical energy into electrical energy. You then plug a light bulb into that, and the electric energy is converted into light.
Of course not! There is no direct relationship between electric current and electric energy. They aren't even measured in the same units. Also in most cases small electric currents provide less electric energy that very large electric currents. If all electric currents provided the same electric energy then the electric current from a flashlight battery that lights the bulb when you turn the switch on could provide the same electric energy as the electric current in a lightning bolt when it strikes... therefore every time you turned on a flashlight the electric energy would destroy the flashlight and electrocute you! As this doesn't happen, the only answer that your question can have is no!