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Digital Electronics

Digital Electronics
Which of the following is 2’s complement of +12?

 00001100
 01110011
 00001000
 00000011

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Digital Electronics
How many stable state/states present in flip-flop ?

 4
 2
 3
 1

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Digital Electronics
The Quine– McClusky method of minimization of a logic expression is a (i) graphical method (ii) algebraic method (iii) tabular method (iv) a computer-oriented algorithm The correct answers are

 (i) and (iii)
 (iii) and (iv)
 (i) and (ii)
 (ii) and (iv)

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Digital Electronics
A self-complementing code for the decimal digits is created using the weight 4 4 3 -2. The value of 8592 in the code is

 1100 1001 1111 1000
 1100 0111 1111 0011
 1000 0101 1001 0010
 1100 1011 1111 1001

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Digital Electronics
When will be the output of an exclusive-OR gate is HIGH ?

 All inputs are HIGH
 The inputs are equal
 All inputs are LOW
 The inputs are different

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Digital Electronics
If a Hexadecimal number needs to convert to binary. For each hexadecimal digit, there will be how many bits

 2
 8
 4
 1

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