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NEET2026PhysicsChapterActual

Given below are two statements regarding a full-wave rectifier equipped with a capacitor filter: Statement I: The fundamental frequency of the ripple voltage at the output of the full-wave rectifier is twice the frequency of the input AC supply. Statement II: For a fixed value of filter capacitance, increasing the load resistance will cause the amplitude of the output ripple voltage to increase. In the light of the a

Options

  1. ABoth Statement I and Statement II are correct
  2. BBoth Statement I and Statement II are incorrect
  3. CStatement I is correct but Statement II is incorrect
  4. DStatement I is incorrect but Statement II is correct

Correct answer

C. Statement I is correct but Statement II is incorrect

Step-by-step solution

In a full-wave rectifier, the output is rectified for both half-cycles of the input AC supply. Thus, the fundamental frequency of the output ripple voltage is twice the input frequency ( f_ out = 2f_ in ). Statement I is correct. The peak-to-peak ripple voltage for a full-wave rectifier with a capacitor filter is given by V_ r = V_ p 2f R_ L C , where R_ L is the load resistance and C is the filter capacitance. For a fixed C , increasing R_ L increases the time constant = R_ L C , which reduces the discharge of the

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