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loudspeaker of telephone: electrical to sound energy microphone of telephone: sound to electrical energy
The sound waves cause a diaphragm in the microphone to vibrate. The mechanical energy is converted to electrical energy.
a microphone
sound energy
Microphone
Starting Energy: Light; Finishing Energy: Electrical
Zero,because the distance has no affect to convert electric energy into light energy.
Given a starting value and a finishing value, the percentage reduction is100*(finishing value - starting value)/starting valueor, equivalently,100*(finishing value/starting value - 1).
loudspeaker of telephone: electrical to sound energy microphone of telephone: sound to electrical energy
The sound waves cause a diaphragm in the microphone to vibrate. The mechanical energy is converted to electrical energy.
the opposite of starting is finishing =]
A microphone
a microphone
eletrical energy
sound energy
starting projects
With a microphone