Apart from electromagnetic induction and resonance what other basic physical principles are involved in wireless charging technology

Magnetic Field: Wireless charging technology uses magnetic fields to transfer energy wirelessly from a transmitter coil to a receiver coil.

Inductive coupling: This is the process by which two coils that are placed near each other can transfer energy between them.

Faraday's Law: This principle states that a changing magnetic field can induce an electric current in a nearby conductor.

Maxwell's equations: These equations describe the behavior of electromagnetic fields and are used to calculate the transfer of energy between the transmitter and receiver coils.

Power conversion: The energy transferred wirelessly needs to be converted from the AC signal of the transmitter coil to a DC signal that can be used to charge the battery of the device.

Efficiency: The efficiency of wireless charging technology is an important consideration, as some energy is lost during the transfer process. Factors such as distance between the coils, alignment, and the quality of the coils can affect the efficiency of the system.