 
			 
			MCQOPTIONS
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				| 1. | At what condition differential amplifier function as a switch | 
| A. | 4V<sub>T</sub> < V<sub>d</sub> < -4V<sub>T</sub> | 
| B. | -2V<sub>T</sub> V<sub>d</sub> 2V<sub>T</sub> | 
| C. | 0 V<sub>d</sub> < -4V<sub>T</sub> | 
| D. | 0 V<sub>d</sub> 2V<sub>T</sub> | 
| Answer» B. -2V<sub>T</sub> V<sub>d</sub> 2V<sub>T</sub> | |