Q136 / 180 · AIIMS 2007 · Physics

In the half wave rectifier circuit operating from \(50 \mathrm{~Hz}\) mains frequency, the fundamental frequency in the ripple would be

  • A
    \(25 \mathrm{~Hz}\)
  • Correct answer
    B
    \(50 \mathrm{~Hz}\)
  • C
    \(70.7 \mathrm{~Hz}\)
  • D
    \(100 \mathrm{~Hz}\)

Solution

Figure
In full wave a.c. or half wave rectifier, the time interval between two peaks are the same. But in half wave rectification, the negative wave part is cut off. But as for frequency or the period, they will be the same as seen from the figures. Therefore, this also will be 50 cycles/second.

Hence, the correct answer is option: 'B'.

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