What is the liquid inside the charging hot water bag
If the electricity will cause magnetic field and magnetic iron is reacted with each other, the so-called water inside the eddy current and hysteresis and then produce heat energy, and transformer why fever is relevant because of hysteresis and eddy current heat, the transformer made of a piece of silicon steel sheet is reduced to hysteresis and eddy current, so as to improve the efficiency, and the hot water bag is the opposite,
The liquid in the bag is not the ordinary water, which contains the conductive material, the hot water bag is produced by the electromagnetic energy of electromagnetic energy is closed to prevent leakage,
Therefore, after the electricity will heat. Such as replaced by water, because water is a bad conductor, it will not heat, so the bag of liquid can not be replaced by water
