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Digital Electronics

Digital Electronics
The binary code of (21.125)10 is

10101.01
10100.111
10100.001
10101.001

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Digital Electronics
Which one of the following is an invalid state in 8-4-2-1 binary coded decimal counter

 1000
 1001
 0011
 1100

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Digital Electronics
The 2s complement of 17 is

 101110.
  101111.
 111110.
 110001.

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

 1
 4
 3
 2

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Digital Electronics
Which one of the following even parity codes are in errors. (I)100110010 (II)011101010 (III)10111111010001010

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

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

NOT gates
None of these
NAND gates
OR gates

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