With advantages over cookers using other cooking methods, induction cookers offer efficiency, controllability, and safety. Each cooker contains one or more magnetic coils. When an alternating current is passed through these coils, a magnetic field of the same frequency is produced. When ferromagnetic metal based cookware is placed on the cooker, the magnetic field induces a current in the pan. The internal resistance of the pan causes heat to bedissipated, following the Joule effect. Thus it is the pan itself, and not the cooker, that heats up and cooks the food. Once the pan is removed from the cooker, the energy transfer stops. The result is a flame-less and absolutely safemethod of cooking.
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