 
			 
			MCQOPTIONS
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				| 1. | A switched mode power supply operating at 20 kHz to 100 kHz range uses as the main switching element is __________. | 
| A. | Thyristor | 
| B. | MOS FET | 
| C. | Triac | 
| D. | UJT | 
| Answer» C. Triac | |