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Digital Electronics

Digital Electronics
Truth table is used to express

 Boolean map
 Boolean addition
 Boolean expression
 Boolean matrix

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Digital Electronics
If clock time period is 1ms, what is its frequency

 1 mHz
None of these
 1 kHz
 1 MHz

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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
Consider the operation 24+17 = 40 .What is the correct base of number so that operation is correct?

 13
 12
 10
 11

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Digital Electronics
In signed magnitude representation, the binary equivalent of 22.5625 is (the bit before comma represents the sign)

 0,10110.1011
 1,10110.1001
 0,10110.1001
 1,10101.1001

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Digital Electronics
NAND. gates are preferred over others because these

consume least electronic power
can be used to make any gate
provide maximum density in a chip.
have lower fabrication area

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