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.ub 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.