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Digital Electronics

Digital Electronics
For the design of a combinational circuit with four inputs using only NAND gates, the number of K-maps required for the simplification process is

 2
 1
 0
 4

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

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Digital Electronics
What is the 2’s complement of 10110000?

 10110000
 10001110
 01010000
 01001111

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Digital Electronics
For checking the parity of a digital word, it is preferable to use

 NOR gates
 NAND gates
 X-OR gates
 AND gates

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Digital Electronics
Which is typically the longest: bit,byte,nibble,word?

 nibble
 byte
 bit
 word

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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

  6 mV.
 10 mV.
  5.85 mV.
 5 mV.

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