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Digital Electronics

Digital Electronics
The logic expression AB can be implemented by giving the inputs A and B to a two-input

 NAND gate
 X-OR gate
 NOR gate
 X-NOR gate

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Digital Electronics
The NOR-NOR realization is equivalent to

 NOT-AND realization
 OR-NOT realization
 OR-AND realization
 AND-OR realization

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Digital Electronics
Positive integers must be represented by

 Both A and B
 unsigned number
 None of these
 signed numbers

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Digital Electronics
The binary equivalent of hexadecimal number 4F2D is

 0101 1111 0010 1100
 0100 1111 0010 1100
 0100 1111 0010 1101
 0100 1110 0010 1101

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Digital Electronics
When will be the output of an AND gate is LOW ?

 When any input is LOW
 When any input is HIGH
 When all input is LOW
 When all inputs are HIGH

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

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

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