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MHT CET Medical202625 April 2026Morning ShiftPhysicsSemiconductorsActual

A full-wave rectifier provides a DC output voltage of 20 V . If the root mean square (RMS) value of the unwanted AC component is measured as 2 V , the ripple factor in percentage is

Options

  1. A2 %
  2. B5 %
  3. C10 %
  4. D20 %

Correct answer

C. 10 %

Step-by-step solution

Given the DC output voltage V_ dc = 20 V and the RMS value of the AC component V_ ac = 2 V . The ripple factor is defined as the ratio of the RMS value of the AC component to the DC component of the output voltage: = V_ ac V_ dc Substituting the given values: = 2 20 = 0.1 Expressing the ripple factor in percentage: = 0.1 100 % = 10 % Answer: 10 %

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