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Which of the following is the most commonly used extrapolator?

Which of the following is the most commonly used extrapolator? Correct Answer Zero Order Hold

The most commonly used extrapolator is the zero order hold. In this extrapolator, the output voltage is a sequence of step signals. Integral Hold, Third orders hold and fifth order hold are not popularly used among extrapolators.

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The voltage during sampling usually varies in the zero order hold extrapolator.
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