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Digital Electronics

Digital Electronics
A 16-square eliminates

 4 variables
 3 variables
 8 variables
 2 variables

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

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

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Digital Electronics
A NAND gate is called a universal logic element because

All the minization techniques are applicable for optimum NAND gate realization
Many digital computers use NAND gates.
It is used by everybody
Any logic function can be realized by NAND gates alone

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

 4
 2
 3
 1

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Digital Electronics
Four ROM chips of 16 × 4 size have their address buses connected together. This system will be of size

 16 × 16
 64 × 4
 256 × 1
 32 × 8

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Digital Electronics
The most suitable gate to check whether the number of 1s in a digital word is even or odd is

 X-OR
 NOR
 AND, OR, and NOT
 NAND

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