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Rectifiers are used to convert:

  • A.Direct current to alternating current
  • B.Alternating current to direct current
  • C.High voltage to low voltage
  • D.Low voltage to high voltage

Answer: B

Rectifiers convert alternating current to direct current.

A diode conducts in one direction only, so it passes half of each AC cycle. Four diodes in a bridge give full-wave rectification, and a smoothing capacitor turns the pulses into steady DC. The reverse conversion is done by an inverter.

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