Wireless Transmission of Electricity
Power crisis is one of the biggest problems of 21st century. The people can't even survive without electricity. Due to this they have to think about renewable source of energy. Renewable energy sources such as solar, wind, hydro etc. are available abundant in nature but their initial cost is high. Also transmission of electricity over long distances causes large transmission losses; the current transmission system is 70-74% efficient i.e. 30-26% of electricity is wasted for transmission of electricity. And also it is very costly. So to overcome such problems one can think for wireless transmission of electricity.