MCQOPTIONS
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				| 1. | 
                                    The active switching element used in all TTL circuits is the | 
                            
| A. | bipolar junction transistor (bjt | 
| B. | field-effect transistor (fet | 
| C. | metal-oxide semiconduct or field- effect transistor (mosfet | 
| D. | unijunctio n transistor (uj) | 
| Answer» B. field-effect transistor (fet | |