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Operational Amplifiers

Q1: If the input to a comparator is a sine wave, the output is a:

A ramp voltage

B sine wave

C rectangular wave

D sawtooth wave

ANS:C - rectangular wave

The comparator is a device to compare two signal. A and B are to signal it compare three condition.

i.e. A > B, A < B, A = B. Depending value it given output.



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