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Give the applications of carbon.
Carbon: These materials used in the field of electrical engineering are manufactured from graphite and the other forms carbon as coal and so on. Carbon has very high value of resistivity. Carbon has negative temperature coefficient of resistance. Carbon is pressure sensitive and it has low surface friction.
Applications: It is used in applications as brushes for apparatus and electrical machines, electrodes for electric- arc furnaces, for making pressure sensitive pile resistors used in automatic voltage regulators, elements for telecommunication equipment, arc lamps and battery cell element.
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