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Digital Electronics

Digital Electronics
What is the 2’s complement of 10110000?

 01001111
 10110000
 01010000
 10001110

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Digital Electronics
The NAND gate can function as a NOT gate if

 inputs are left open
 one input is set to 0
 one input is set to 1
 all inputs are connected together

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Digital Electronics
The universal gate is ___________

None of these
AND gate
NAND gate
OR gate

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Digital Electronics
Which circuit is used in between two systems having two different codes

 Combinational
 Both A and B
 Sequential
 Conversion

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Digital Electronics
The voltage levels for positive logic system

 must necessarily be positive
 must necessarily be 0 V and 5 V
 must necessarily be negative
 may be positive or negative

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Digital Electronics
In a T flip-flop no of input circuit is

 2
 1
 4
 3

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