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| Q. |
A NOT gate can be implemented by: |
| A. | a single diode |
| B. | two diodes |
| C. | a single resistor |
| D. | a single transistor |
| Answer» D. a single transistor | |
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Explanation: In digital logic, an inverter or NOT gate is a logic gate which implements logical negation. An inverter circuit outputs a voltage representing the opposite logic-level to its input. Inverters can be constructed using a single NMOS transistor or a single PMOS transistor coupled with a resistor. |
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