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Digital Electronics

Digital Electronics
The output of a gate is LOW when at least one of its inputs is HIGH. This is true for

 OR
 AND
 NOR
 NAND

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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?

 OR
 X-OR
 X-NOR
 AND

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Digital Electronics
If J = K (J and K are shorted) in a JK flip-flop, what circuit is made

 Shorted JK flip-flop
 K flip-flop
 T flip-flop
 SR flip-flop

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Digital Electronics
AND operation of (79)10 & (-56)10 is

 42H
 48H
 08H
 50H

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Digital Electronics
X OR X' will result

 X'
 1
 X
 0

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Digital Electronics
Which one of the following is 2’s complement of -68?

 10111100
 00111100
 11000100
 01111100

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