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Digital Electronics

Digital Electronics
The binary number 110011.11 is equivalent to decimal number

 51.75
 50.65
 51.65
 50.75

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Digital Electronics
X = 01110 and Y = 11001 are two 5-bit binary numbers represented in 2’s complement format. The sum of X and Y in 2’s complement format using 6 bits is

 101001
 100111
 001000
 0001111

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Digital Electronics
Maximum number in decimal that can be represented by 4 bits (binary) is

 16
 7
 15
 4

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Digital Electronics
What is the logic which controls a stair case light associated with two switches A and B located at the bottom and top of the stair case respectively?

 X-OR
 X-NOR
 AND
 OR

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Digital Electronics
The output of a logic gate is 0 when all its inputs are at logic 1. The gate is either

 a NAND or an AND
 a NAND or an X-OR
 a NAND or an X-NOR
 a NOR or an X-NOR

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Digital Electronics
Logic circuits are

 hybrid circuits
 none of these
 analog circuits
 digital circuits

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