Wireless electricity transmission can be achieved through several methods, including inductive coupling, resonant inductive coupling, and microwave transmission. Inductive coupling is commonly used in devices like electric toothbrush chargers, where energy is transferred through magnetic fields. Resonant inductive coupling allows for more efficient energy transfer over greater distances by tuning the transmitter and receiver to the same frequency. Microwave transmission involves converting electricity into microwave radiation, which can be directed to a receiver that converts it back into electricity. Practical applications of these methods vary based on power requirements and specific use cases.
