Electromagnetic unit

Usage examples of oersted.

Queen Victoria had ever called an urgent meeting of her counsellors, and ordered them to invent the equivalent of radio and television, it is unlikely that any of them would have imagined the path to lead through the experiments of Ampere, Biot, Oersted and Faraday, four equations of vector calculus, and the judgement to preserve the displacement current in a vacuum.

Thus what had escaped Oersted throughout his planned researches - namely, that the magnetic force which accompanies an electric current must be sought in a direction at right angles to the current - a fortuitous event enabled him to detect.

Queen Victoria had ever called an urgent meeting of her counsellors, and ordered them to invent the equivalent of radio and television, it is unlikely that any of them would have imagined the path to lead through the experiments of Ampere, Biot, Oersted and Faraday, four equations of vector calculus, and the judgement to preserve the displacement current in a vacuum.

If Queen Victoria had ever called an urgent meeting of her counsellors, and ordered them to invent the equivalent of radio and television, it is unlikely that any of them would have imagined the path to lead through the experiments of Ampere, Biot, Oersted and Faraday, four equations of vector calculus, and the judgement to preserve the displacement current in a vacuum.

About to leave the lecture room where he had just been trying to prove the non-existence of such magnetic properties (an attempt seemingly crowned with success), Oersted happened to glance once more at his demonstration bench.

In 1820, just three years before Michael Faraday liquefied chlorine, the Danish scientist Hans Christian Oersted and then the Frenchman André Marie Ampère found that there was a relation between electricity and magnetism—a flowing current would make a magnet move.