How does the coil and magnetic field relate in induction cooking?
Varying magnetic fields can produce electricity and electric current can generate magnetic fields. This is a well observed phenomenon of physics. To understand this, you can look up “Electromagnetic Induction” and “Magnetic effect of Electric current” on Google. Now, let us apply this to induction cooking: Varying magnetic fields can induce an electromotive force (potential difference) in conductors linked with them. In a coil (a closed circuit), a varying manetic field induces an emf, which in turn leads to flow of current. When current flows through conductors with resistance, energy gets dissipated in the form of heat. This is known as heating effect of electric current. The heat, thus generated by the current in the coil is utilised for cooking. Okay?
