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Digital Electronics

Digital Electronics
(44)8 in BCD 8421 code is

 00110110
 01100011
 01000100
 00100100

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

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

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Digital Electronics
X' AND X' will result

 1
 X
 X power 2
 0

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Digital Electronics
A bubbled NAND gate is equivalent to a

 X-OR gate
 NAND gate
 OR gate
 NOR gate

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Digital Electronics
Which of the following is 1’s complement representation of +57

 11000110
 00111001
 00000001
 01000110

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Digital Electronics
What will be the Boolean expression for an inverter logic gate, where input is A and output is G ?

 G = A
 G = Ā
 A= G
None of these

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