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.
To bake frozen corn in the oven, preheat the oven to 425Â°F (220Â°C). Rub the ears with a little butter, wrap them in aluminum foil, place them on a rack in the oven and cook for 25 to 35 minutes. Place a jelly-roll pan on a lower rack under the corn to catch any drips.rush butter over the ears, wrap them in the foil, and put the corn on the grill. Grill for 25 to 35 minutes with the grill lid closed, turning occasionally, until thoroughly heated.