How wireless electricity works?

Subject: How wireless electricity works?

Date: Sat Jan 31 08:30:45 2015
Posted by Hiran
Grade level: 10-12 School: Presiden's College Maharagama
City: Colombo State/Province: Western Country: Sri Lanka
Area of science: Physics
ID: 1422718245.Ph

Message:


I have been searching for this a lot but there wasn't a well explained article. 
I saw a little home-made 
project. I wanted to know why the transmitter use a NPN transistor for what 
purpose? What is we don't use 
transistor? I remember that Tesla invented this and he did it using bigger 
voltages. But is there a big 
energy loss in this? 

Thanks

Re: How wireless electricity works?

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