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Digital Electronics

Digital Electronics
8421 code is

 non-weighted code
 alphanumeric code
 weighted code
 self-complementing code

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Digital Electronics
How many entries will be in the truth table of a 3 input NAND gate ?

 8
 9
 6
 3

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Digital Electronics
A digital voltmeter has a read out range from 0 to 999 counts, the resolution is

 0.01 V.
 1 V.
 1.1 V.
  1 mV.

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Digital Electronics
Which GATE IS CALLED INEQUALITY COMPARATOR?

 3. XOR
 1. NOR
 4. NOT
 2. AND

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Digital Electronics
Which of the following BCD codes with an odd parity bit included in the end of code group, have error in the code? (I)1001010110000 (II)0100011101100 (III)0111110000011 (IV)1000011000101

 Both (I)&(IV)
 Both (I) & (II)
 Only (II)
 Both (II)&(III)

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Digital Electronics
Digital circuit can be made by the repeated use of ___________

None of these
NOT gates
OR gates
NAND gates

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