SSC
PHYSICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Stores electric charge
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Acts as a current amplifier
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Acts as an automatic switch
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Allows the current to pass in one direction only
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Detailed explanation-1: -It allows current to flow easily in one direction, but severely restricts current from flowing in the opposite direction. Diodes are also known as rectifiers because they change alternating current (ac) into pulsating direct current (dc).
Detailed explanation-2: -Diode Polarity & Symbols One side is the positive terminal, called the anode. The other terminal is the negative end, called the cathode. Current can only move in a diode from the anode to the cathode, never the other way around.
Detailed explanation-3: -Zener diodes: Zener diodes are a special kind of diode, which permits current to flow not only in the forward direction but also allow current to flow in the reverse direction when the reverse voltage is above a certain value, due to the Zener and avalanche effect.