MCQOPTIONS
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MCQOPTIONS
| 1. |
A comparator circuit is used to |
| A. | Mark the instant when an arbitrary waveform attains some reference level |
| B. | Mark the instant when the input voltage becomes constant |
| C. | Switch ON and OFF a circuit alternately at a particular rate |
| D. | Switch OFF a circuit when output becomes zero |
| Answer» B. Mark the instant when the input voltage becomes constant | |