Induction Heating Explained

This course explains the working principle of induction heating, using an induction hob as a familiar example. It begins by explaining how electric current produces a magnetic field and how reversing the current reverses the direction of the magnetic field.

The course then explains how an electronic circuit supplies an induction coil with alternating current, creating a changing magnetic field. When suitable metal cookware is placed above the coil, the changing magnetic field induces eddy currents within the pan. These currents generate heat directly in the cookware, which is then transferred to the food.

The course also explains why induction cooking can heat food quickly and why cookware must be suitable for induction heating, including the role of ferromagnetic materials and the simple magnet test for checking cookware compatibility.