Tesla Coil (with Automatic On/Off Mechanism): It is based on the principle of mutual induction.According to which,when a conductor is placed under a varying magnetic field,a small current will be induced inside the conductor.For a Tesla Coil this conductor will be called as the secondary coil and varying magnetic field will be produced by the primary coil by passing an oscillating current through the primary coil.
A primary coil which will have an oscillating current, and hence will produce a carrying magnetic flux around it. Now, this coil is wound around the secondary coil and hence a according to law of electromagnetic induction a voltage will be induced in the secondary coil and will have a very strong electric flux around it that is powerful enough to glow normal CFL bulbs and is used in Wireless Power Transmission.Automatic Day/Night switch is fixed in this circuit that automatically allows the current to flow in night or when there is darkness. In my project,rechargeable battery is used as a power source and battery is connected to the solar plate for recharging. If the government helps in making it on a large scale,then it can light up an entire village without straying and fear of shock from one place(where it is situated). In Night Automatic Day/Night switch mechanism works that will allow the current to flow through the coil and CFLs or any Fluorescent Lights of houses,streetlights etc. that are in contact with the coil's electric field will start glowing. Glowing of bulbs from one place without wires and without direct electric connection to them will save energy and money.