These effects are derived from two fundamental observations of physics: a steady current creates a steady magnetic field described by Oersted's law, and a time-varying magnetic field induces an electromotive force in nearby conductors, which is described by Faraday's law of induction.
Butter & salt. Preheat the oven to 400 degrees. Husk the corn, wrap each ear in foil, adding 2 teaspoons of butter to each packet. Bake for about 25 minutes or roast the foil-wrapped corn over hot coals turning once during the cooking. Serve with more butter and salt.
Prepare the ears of corn Do not remove the husks or silks from the ears of corn. A damp paper towel or tea towel can be wrapped around the ears of corn for added moisture during cooking. Cook the ears of corn Place the corn in the microwave, and cook on high for approximately two to four minutes per ear, depending upon the wattage of the oven.