Starting with the wiki on wireless power transfer is not a bad start, "wireless power transfer":http://en.wikipedia.org/wiki/Wireless_energy_transfer
This "paper":http://web.media.mit.edu/~jrs/WISP-WARP.pdf by Alanson Sample and Joshua R. Smith, (Intel Research Seattle, linked from MIT), describes a use for wireless power transfer that may help give you an understanding about the subject.
thank u very much sir....for your valueable attention....the paper is also relavent to the wireless power transfer.but the link given before is different & the experiment is illustrated by vedio clip..
