The voice from a person's mouth (air flow) vibrates a diaphram which translates the vibrations (mechanical energy) into electrical wave oscillations using an magnet and a coil. These electrical oscillations are superimposed on to a high frequency carrier wave and sent over physical wires, under sea cables, micro wave towers, satellites etc (purely electrical energy) and at the receiving end the carrier wave is removed and only the wave that was generated by the voice and hence the diaphram and hence the magnet and the coil is made to drive a coil over which is a diaphram which vibrates (mechanical energy) to reproduce the sound. Of late digital phones have come into the market but the basic principle is the same. Convert mechanical energy to electrical energy and then convert electrical energy to mechanical energy.
In a loudspeaker, electrical energy is converted into mechanical energy to produce sound waves. In a microphone, sound waves cause a diaphragm to vibrate, converting the mechanical energy into electrical signals.
The telephone system converts acoustic energy into electric energy
Electrical energy
the telephone wire it is connected 2
The conversion of energy from one form to another helps let the telephone have all the energy it needs to work.
electrical energy.
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.
A generator changes mechanical energy into electrical energy.
The mitochondria changes food energy to chemical energy.
When telephone is ringing
The mitochondria changes food energy to chemical energy.
The mitochondria changes food energy to chemical energy.