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Digital Electronics

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

 X-OR
 NAND
 AND, OR, and NOT
 NOR

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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 10 bit A/D conveter is used to digitize an analog signal in the 0 to 6 volt. The maximum peak to ripple voltage that can be allowed in the D.C. supply voltage is

 10 mV.
 5 mV.
  6 mV.
  5.85 mV.

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Digital Electronics
A sequence of binary digits is known as

 word string
 bit string
 input string
 byte string

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Digital Electronics
In LSI, the number of gate circuits per chip is

 < 10,000
 100 to 999
 1000 to 10,000
 100 to 9,999

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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

 octal
 ASCII
 hexadecimal
 natural BCD

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