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Digital Electronics

Digital Electronics
What logic function is produced by adding an inverter to each input and output of an AND gate?

 OR
 X-OR
 NOR
 NAND

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Digital Electronics
What is the Boolean expression for a two-input AND gate ?

 A + B
 A & B
 A.B
 A - B

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Digital Electronics
1’s complement of 17 is

 10111.
 10001.
  01110.
 11100.

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Digital Electronics
The output of a logic gate is 1 when all its inputs are at logic 0. The gate is either

 an X-OR or an X-NOR
 a NAND or a NOR
 an AND or an X-NOR
 an OR or a NAND

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Digital Electronics
When will be the output of an OR gate is LOW ?

 When any input is LOW
 When all input is LOW
 When all inputs are HIGH
 When any input is HIGH

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Digital Electronics
The logic expression AB can be implemented by giving the inputs A and B to a two-input

 X-OR gate
 NAND gate
 NOR gate
 X-NOR gate

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