How do wireless charging pads transfer power without cables?

Wireless charging pads use electric waves to send power from one place to another, just like how radio stations send music through the air to your phone.

Imagine you have a toy that plays music when it's near a special speaker. The speaker doesn’t touch the toy, but the toy still hears the music because the speaker sends sound waves through the air. Wireless charging is kind of like that, but instead of sound, it uses electric waves.

When you put your phone on a wireless charging pad, both the phone and the pad start sending out electric signals, like they're talking to each other across a room. These signals go through the air or a thin layer between them (like a table), and when they reach the phone, they turn back into power, which charges your phone’s battery.

It’s like having a special kind of invisible bridge that lets power cross from one object to another, no need for cables or touching parts. You just place your phone on the pad, and poof, it starts charging!