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Digital Electronics

Digital Electronics
What is the minimum number of 2 input NAND gates used to perform the function of 2 input OR gate

 2
 3
 4
 1

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Digital Electronics
Which of the following represents (E3)16 ?

 (2BC)16-(1DE)16
 (1CE)16+(A2)16
 (1BC)16-(DE)16
 (200)16-(11D)16

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Digital Electronics
The binary code of (21.125)10 is

10101.01
10101.001
10100.111
10100.001

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Digital Electronics
What is the minimum number of NAND gates required to realize an X-OR gate?

 4
 3
 5
 6

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Digital Electronics
2-out-of-5 code is

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

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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
 1100
 0011

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