First, convert the
AC current coming from the power source to DC using a
rectifier. Then, connect this DC current to a high-frequency
switching circuit to administer high-frequency current to the
heating coil. According to Ampere’s Law, a high-frequency
magnetic field is created around the heated coil. If a
conductive object, e.g. the container of a rice cooker, is put
inside the magnetic field, the induced voltage and an eddy
current are created on the skin depth of the container as a
result of the skin effect and Faraday’s Law. This generates
heat energy on the surface of the container. Rice is cooked
by using this heat energy
First, convert the
AC current coming from the power source to DC using a
rectifier. Then, connect this DC current to a high-frequency
switching circuit to administer high-frequency current to the
heating coil. According to Ampere’s Law, a high-frequency
magnetic field is created around the heated coil. If a
conductive object, e.g. the container of a rice cooker, is put
inside the magnetic field, the induced voltage and an eddy
current are created on the skin depth of the container as a
result of the skin effect and Faraday’s Law. This generates
heat energy on the surface of the container. Rice is cooked
by using this heat energy
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