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Digital Electronics

Digital Electronics
Which of these circuits will give yield carry with more delay 1. Carry look ahead adder 2. Ripple carry adder

 none
 both are same
 1.
 2.

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Digital Electronics
If in a base b number system, 54/4=13, the base of the number is

 8
 7
 9
 6

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Digital Electronics
A D-flip-flop is said to be transparent when

 the output follow input
 the output is LOW
 the output follows clock
 the output is HIGH

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Digital Electronics
The state of a flip-flop can be switched by changing its ________ signals.

 output
 input
 triggering
 clearing

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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

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

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Digital Electronics
A 15-bit Hamming code requires

 4 parity bits
 none of these.
 15 parity bits
 5 parity bits

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