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Digital Electronics

Digital Electronics
The time required for a gate to change its output is called as

 Decay time
 propagation time
 start time
 run time

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Digital Electronics
(44)8 in BCD 8421 code is

 00100100
 01100011
 00110110
 01000100

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Digital Electronics
The voltage levels for positive logic system

 must necessarily be negative
 must necessarily be 0 V and 5 V
 may be positive or negative
 must necessarily be positive

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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
 1100 1011 1111 1001
 1000 0101 1001 0010

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Digital Electronics
The number of Boolean functions that can be generated by n variables is equal to

2n-1
22n
2n
2n

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Digital Electronics
The output of a gate is HIGH if and only if all its inputs are LOW. It is true for

 X-OR
 NOR
 NAND
 X-NOR

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MORE MCQ ON Digital Electronics

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