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Digital Electronics

Digital Electronics
A bubbled OR gate is equivalent to a

 NOR gate
 X-OR gate
 AND gate
 NAND gate

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Digital Electronics
A gate is enabled when its enable input is at logic 1. The gate is

 OR
 NAND
 NOR
 none of these

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Digital Electronics
Logic circuits are

 digital circuits
 none of these
 analog circuits
 hybrid circuits

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Digital Electronics
The logic expression A + B can be implemented by giving inputs A and B to a two-input

 X-NOR gate
 NOR gate
 X-OR gate
 NAND gate

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Digital Electronics
The 1’s complement of 11010111 is

 11101000
 10101000
 10101000
 00101000

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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-NOR
 X-OR
 AND
 OR

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