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The rectifier current is a short duration pulses which cause the diode to act as a_________

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The rectifier current is a short duration pulses which cause the diode to act as a_________

(a) Voltage regulator

(b) Mixer

(c) Switch

(d) Oscillator

The question was posed to me in semester exam.

This interesting question is from Capacitor Filters topic in division Application of Diodes of Electronic Devices & Circuits

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Correct choice is (c) Switch

The best I can explain: The diode permits charge to flow in capacitor when the transformer voltage exceeds the capacitor voltage. It disconnects the power source when the transformer voltage falls below that of a capacitor.

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