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Digital Electronics

Digital Electronics
The fan put of a 7400 NAND gate is

2TTL
10TTL
8TTL
5TTL

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Digital Electronics
The main equation for a D flip flop is

 Q=D
 Q=0
 Q=D'
 Q=1

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Digital Electronics
Why small bubble is given on the output of the NAND gate symbol ?

 Open collector output
None of these
 Tristate
 Output is inverted

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Digital Electronics
A read only memory in which the present contents must be erased before the new information can be stored is

 PROM
 EAROM
All of these
 ROM

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Digital Electronics
The main criterion in the design of a digital circuit is reduction of

 size
 cost
 volume
 weight

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

 OR
 NAND
 NOR
 X-OR

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MORE MCQ ON Digital Electronics

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