Lunch card demagnetization?

Of course there are coils inside the pull, they are in the electromagnetic wave excitation, LC resonant circuit to produce *** vibration, so that the capacitance of the charge in the capacitance, at the other end of the capacitance, connected to a single conduction of the electronic pump, the capacitance of the charge in the capacitance of the capacitance of the other capacitance, when the accumulation of the charge reaches 2V, the capacitance of this capacitance can be done as a power supply to provide other circuits with the working voltage, the data in the card will be launched out! The capacitor can be used as a power supply to provide voltage to other circuits to transmit data from the card or to receive data from a reader/writer.

These coils are magnetized by electromagnetic waves, which in turn generates the electrical current that allows your card to be read and written to,

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