Multiple choice

Consider the following statements regarding AC to DC power supply: (a) An AC to DC power supply is built using a transformer and a half-wave rectifier (b) Transformer is used to step down the voltage i/p (c) Rectifier converts AC to pulsed DC Which of the above statements is/are true?

  1. Only (a) and (c)

  2. Only (a) and (b)

  3. Only (b) and (c)

  4. All of the above

  5. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Statement (a) is false: An AC to DC power supply is built using a transformer and a full-wave rectifier. Statement (b) is true: Transformer is used to step down the voltage i/p. Statement(c) is true: Rectifier converts AC to pulsed DC.

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