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Why is graphite used to make electrical contacts in motors and generators?
Wiki User
∙ 8y ago
Copper brushes provided poor commutation as they moved from one commutator segment to the next. The cure was the introduction of 'high resistance brushes' made from graphite (sometimes with added copper). This 'high resistance' provided a gradual shift of current from one commutator segment to the next.
Partially referenced via Wikipedia
Wiki User
∙ 8y ago
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Basically the service, maintainance and repair of many types of AC and DC motors, generators, and engine-like machinery.
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Stator and rotor
What is the difference between electricmotor and generator?
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Transformer Motors CT,PT Genrators these all are electrical devices
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David Penn Moreton has written: 'Electric motors' -- subject(s): Electric motors 'Generators and motors' -- subject(s): Electric generators, Electric motors 'Practical applied electricity' -- subject(s): Electrical engineering, Electric engineering
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The basic idea behind a generator is that it converts mechanical energy (kinetic) to electrical energy in the form of electric current. A motor does this process in reverse: it uses electrical energy and converts it into mechanical energy (it produces motion). This is, presumably, what your physics teacher wants to hear.
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