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Digital Electronics

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

 AND
 X-OR
 NOR
 NAND

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Digital Electronics
The set of which logic gates is designated as universal gate?

  NOR , NAND.
 XNOR, NOR, NAND.
 XNOR, NOR, NAND.
 NOT, OR , AND.

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Digital Electronics
An all or nothing gate is the other name of

 X-OR gate
 AND gate
 X-NOR gate
 OR gate

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Digital Electronics
How many input and output required for demultiplexer ?

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

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Digital Electronics
(11011) 2 in BCD 8421 code is

 00011011
 01101100
 00100111
 11011001

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

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

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