The days of charging your electrical gadgets through cables and cords have passed. It’s been more than a century since wireless charging technology became popular. The magnetic resonant coupling, invented by Tesla, permits the energy to be sent over the air via two circuits ̶ a transmitter and a receiver. This technique was not used in the real world for about a hundred years. However, there are numerous wireless charging methods available today that reduce the need for cords on everything from mobile phones to wearable smart gadgets, laptops, household appliances, and automobiles.