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Insulated Wire

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Insulated wires When American Joseph Henry first became intended in science at the age of sixteen, he found electricity fascinating and began experimenting with electromagnets. Wire carrying electricity produce weak magnetic fields around them, if however the wire is coiled many times around a metal such as iron, the effect is magnified and the resulting magnetic field is much stronger. The first electromagnets were coiled very loosely to prevent the current carrying wires touching and causing an electric short circuit. Henry was the first to use an insulting cover for to use an insulting cover for the wires, so that they could be wrapped more tightly and in many layers multiplying the effect. Henry's first insulation for wires was tediously made from strips of his wife's petticoats. The material of the insulator has to resist the flow of electricity. This is done by ensuring the constituent atoms have tightly bound elections. The using gutta-percha a latex s...
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Coaxial Cable In the early 1920s it was clear to communications that high frequency transmission lines were Paramount to the success of any further developments in communications, since ordinary wires and cables simply could not cope. Two engineers at Bell Laboratories Loyed Espenschied and Herman Affel came to the rescue. Together they created the Coaxial Cable, which is capable of carrying high frequency (or broadband) signals successfully. Instead of having just single stands of copper covered by a jacket of flexible plastic, they widened their working diameter to include an insulting space and a conducting sheild, which gives the cable a very distinctive cross section. Running through the very center of the cable is the conductor, which carries the signals. Wrapped around this is the inner dielectric insulator and wrapped around that is a conducting shield that reduces electromagnetic interference from any external sources, meaning that the signal stay clear. The shield...
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