Mobile devices consume inductive power. Also, these devices can be tablets or smartphones. They have a receiver coil that features a power receiver. However, the receiver in the devices provides the battery power. Control and communication units are available in power receivers. How does it work?
Devices like this are relatively large, take time to switch, and consume quite a bit of power, which is one reason why the mid-20th computers based on them were much bigger and slower than modern machines. 19th century: Charles Babbage sketches plans for elaborate, gear-driven computers with...