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Digital Electronics

Digital Electronics
What is the Boolean expression for a two-input AND gate ?

 A - B
 A & B
 A.B
 A + B

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Digital Electronics
A flip flop is a _______ circuit.

 None
 Both A and B
 Combinational
 Sequential

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

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

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Digital Electronics
1’s complement of 17 is

 10111.
  01110.
 11100.
 10001.

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Digital Electronics
The boolean algebra is mostly based on

 De Morgans theorem
 De Morpans theorem
 Boolean theorem
 Standard theorem

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Digital Electronics
For a code to be self-complementing, the sum of all its weights must be

 6
 10
 12
 9

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MORE MCQ ON Digital Electronics

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