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Digital Electronics

Digital Electronics
Which of the following is equivalant to an ODD function

 XOR
 XNOR
 NOR
 AND-NOR

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Digital Electronics
An X-OR gate gives a high output

 if the decimal value of digital word is even
 if there are odd number of 1s
 if it has even number of 0s
 for odd decimal value.

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Digital Electronics
Simplified form of the function f = (x+y+xy)(x+z)

 y+xz
 x+yz
 x+xyz
 x+y

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Digital Electronics
When will be the output of an AND gate is HIGH if there are three inputs, A, B, and C ?

 A = 1, B = 0, C = 1
 A = 0, B = 0, C = 0
 A = 1, B = 1, C = 0
 A = 1, B = 1, C = 1

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Digital Electronics
The inputs of a NAND gate are connected together. The resulting circuit is ___________.

OR gate
AND gate
None of these
NOT gate

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Digital Electronics
8421 code is

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

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