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Consider the following statements. Which of them represents the precise condition of clipper circuits that clips the input voltage above a reference voltage?

A. If VR> Vi , then diode is supposed to be reversed-biased & hence V0= Vi

B. If Vi> VR , then diode is supposed to be forward-biased & hence V0 = Vi (Marks : 02)


a. A is false and B is true

b. A is true and B is false

c. Both A & B are true

d. Both A &B are false













ANSWER: A is true and B is false


Explanation:

Clipper circuits are applicable for selecting that portion of input wave which is located above or below the reference levels.

For the clipper circuit that clips the input voltage above the reference voltage , the necessary operational conditions are

1) If Vi < VR, then diode is reverse-biased & does not operate or conduct Thus, V0= Vi &
2) If Vi>VR , then diode operates in forward biased condition & hence Vo = VR