MCQOPTIONS
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				| 1. | 
                                    An OP-AMP comparator is a circuit that compares the signal voltage on one of its inputs with a ______________? | 
                            
| A. | Non-inverting voltage at output | 
| B. | Reference voltage on the other | 
| C. | Virtual input | 
| D. | Output | 
| Answer» C. Virtual input | |