the telephone wire it is connected 2
The telephone system converts acoustic energy into electric energy
Electrical energy
Mobiles are the best source of communication so it is the best telephone
First, you should learn proper grammar. The telephone plays a "role" not a "roll." people could communicate from distances ADDED: None. The Industrial Revolution occurred before electricity was a viable energy-source, let alone the telephone was invented.
green energy source
The conversion of energy from one form to another helps let the telephone have all the energy it needs to work.
electrical energy.
The term clean source of energy refers to only primary energy sources as wind or solar energy. Electricity, by definition, is not a primary energy source. It is a secondary energy source that is could be produced by a clean energy source as wind or any renewable primary energy source or produced by fossil energy source as oil, natural gas, or coal.
waves is not a source of energy
No its not a source of energy..... geez...
Sound energy is transferred when speaking into a telephone. The vibrations caused by the sound of our voice are converted into electrical signals that are then transmitted through the telephone line to the receiving end.
The source of energy in stoves is HEAT ENERGY