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Which winding arrangement does an alternator stator use?

  • A.Six phase, which is used in order to reduce the ripple in the rectified output of the machine to a minimum
  • B.Three phase, in star or delta connection
  • C.A single phase winding, whose output is rectified by two diodes to produce the direct current required for charging
  • D.Two phase

Answer: B

Three windings spaced at a hundred and twenty degrees give a smooth rectified output with six diodes. Six phase machines genuinely exist on high output alternators, which makes the last option a real modern arrangement rather than an invention. Naming the cost of a choice alongside its benefit is what turns a fact into a design decision. Naming what changes and what stays the same is the reliable route through questions of this shape.

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