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Digital Electronics

Digital Electronics
The NAND gate is AND gate followed by ___________.

NOT gate
OR gate
None of these
AND gate

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Digital Electronics
1s Complement of 11001010 is

 00110101
 00110111
 11001001
 11001011

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

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

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Digital Electronics
The code used in digital systems to represent decimal digits, letters, and other special characters such as + , – , . , * , etc. is

 ASCII
 octal
 hexadecimal
 natural BCD

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Digital Electronics
A gate is enabled when its enable input is at logic 1. The gate is

 none of these
 NOR
 NAND
 OR

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Digital Electronics
The maximum positive and negative numbers that can be represented in one’s complement using n-bits are respectively

 +(2n-1-1),-(2n-1-1)
 +2n-1,-(2n-1-1)
 +(2n-1-1),-2n-1
 None of these

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