Heat and light energy
The power rating is printed on the lamp holder, expressed in watts. As power describes the rate of energy consumption, you need to convert the number of watts into kilowatts (divide by 1000) and multiply this figure by the time for which the lamp is in use (expressed in hours) -this will tell you the number of kilowatt hours of energy used.
Probably, but keeping equipment you don't need on is a waste of energy.
solar energy comes from the sun but it is not from another form of energy.
sound is form of energy
The plural form of projector is projectors.
Electrical energy
Mechanical
Heat and light energy
Electricity
A bioscope is an early form of movie projector.
A bioscope is an early form of movie projector.
they both use electric energy and change it to make light energy to create pictures
The movie projector uses light to project a picture. These running pictures are what people see when they watch a movie.
Due to the bright bulb, the 3M 2000 overhead projector can use a substantial amount of power and is not, unfortunately, Energy Star rated.
(O)ver(h)ead (P)rojector
She is a projector of lies and falsehoods.The projector is broken again.I operate the projector at the cinema.