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Digital Electronics

Digital Electronics
Choose the option which is not a code conversion standard

 Excess-3 code
 Gray code
 Truth code
 BCD code

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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.
  5.85 mV.
  6 mV.
 5 mV.

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Digital Electronics
A multiplexer is a

 1-to-1 device
 N-to-1 device
 1-to-N device
 N-to-N device

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Digital Electronics
In the boolean algebra, a variable has ________ different state(s)/value(s).

 1
 3
 2
 4

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Digital Electronics
Complement of NOR and OR gate is ________ and ________ respectively.

 OR, NOR
 AND, NAND
 NAND, AND
 NOR, OR

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Digital Electronics
The maximum positive and negative numbers which can be represented in two’s complement form using n bits are respectively,

 +(2n-1-1),-2n-1
 +2n-1,-(2n-1+1)
 +2n-1,-2n-1
 +(2n-1-1),-(2n-1-1)

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