Question

Diode is used as a/an

(a) rectifier

(b) oscillator

(c) amplifier

(d) modulator.

Answer 1

The correct option is (a) rectifier. Explanation: Diode is a device which allows to pass a current only when it is forward biased. That's why if we use one alternating voltage source instead of a battery during the negative cycles the diode will be reverse biased and will not allow the current to flow. Hence it can be used as a rectifier.

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