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Digital Electronics

Digital Electronics
The output of a gate is LOW when at least one of its inputs is HIGH. This is true for

 AND
 NOR
 NAND
 OR

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

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

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Digital Electronics
How many input and output required for demultiplexer ?

 one input and one output
 number of selection inputs and one output
 one input and many output
None of these

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

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

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Digital Electronics
How many entries will be in the truth table of a 3 input NAND gate ?

 8
 6
 3
 9

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

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

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