Comparators and Schmitt Triggers — MCQs – EE

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1. A comparator is a circuit that:



2. The output of a comparator is usually:



3. A comparator operates mostly in the:



4. In an inverting comparator, the reference voltage is applied to the:



5. In a non-inverting comparator, the reference voltage is applied to the:



6. The output of an ideal comparator is:



7. The threshold voltage of a comparator is the voltage:



8. A comparator can be used to convert:



9. A comparator circuit with hysteresis is called a:



10. Hysteresis in a Schmitt Trigger helps to:



11. A Schmitt Trigger is a type of:



12. The two threshold voltages in a Schmitt Trigger are known as:



13. The region between upper and lower trigger voltages is called:



14. In a Schmitt Trigger, the output changes state only when:



15. A Schmitt Trigger converts a noisy analog input into a:



16. The feedback used in a Schmitt Trigger is:



17. The main application of a comparator is in:



18. The main application of a Schmitt Trigger is in:



19. The output of a Schmitt Trigger for a sinusoidal input is:



20. In a comparator circuit, the speed of operation is limited by:



21. A comparator is also known as a:



22. The output of a comparator saturates at approximately:



23. A Schmitt Trigger can be used as a:



24. In a non-inverting Schmitt Trigger, the input is applied to:



25. The hysteresis width of a Schmitt Trigger depends on:



26. A zero-crossing detector is a type of:



27. The zero-crossing detector changes its output when:



28. The output of a comparator without hysteresis can:



29. In a Schmitt Trigger, positive feedback causes:



30. A Schmitt Trigger is preferred over a simple comparator when:



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