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Digital Electronics

Digital Electronics
A bubbled NOR gate is equivalent to a

 NOR gate
 X-OR gate
 AND gate
 NAND gate

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Digital Electronics
What is the Boolean expression for a two-input AND gate ?

 A - B
 A & B
 A + B
 A.B

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Digital Electronics
A gate is inhibited when its inhibit input is at logic 1. The gate is

 AND
 OR
 NAND
 none of these

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Digital Electronics
The most suitable gate for comparing two bits is

 NAND
 AND
 OR
 X-OR

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Digital Electronics
How many NOR gates are required to obtain AND operation?

 3
 1
 4
 2

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

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

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