A full wave rectifier is operating from 50 Hz mains. Fundamental frequency of ripple will be:
Correct answer: A. 100 Hz
- A. 100 Hz
- B. 25 Hz
- C. 50 Hz
- D. 200 Hz
Explanation
In a full-wave rectifier, during each half cycle, the current flows through two diodes instead of just one. The amplitude of the output voltage is two voltage drops less than the input Vmax amplitude and the ripple frequency is now twice the supply frequency. The fundamental frequency of the ripple voltage is double that of the supply frequency.
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Alternating current varies periodically, so phase relationships become essential when current passes through a resistor, capacitor or inductor. The chapter distinguishes resistance from capacitive and inductive reactance, explains phase lead and lag, and connects changing electric and magnetic fields with the production and properties of electromagnetic waves.
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