The basic purpose of the filter is to:
Correct answer: C. Remove ripples from the rectified output
- A. Minimize variation in ac signal
- B. Suppress harmonics in rectified output
- C. Remove ripples from the rectified output
- D. Stabilize dc output voltage
Explanation
A filter circuit is a device that 'removes the a.c. component' of rectifier output and allows only d.c. component to reach the load.
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A p-n junction forms when p-type and n-type semiconductor regions meet, creating a depletion layer, barrier potential and rectifying action. The work covers forward and reverse bias, junction current, diode characteristics, and how a diode converts alternating current into pulsating direct current through half-wave and full-wave rectification.
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