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Digital Electronics

Digital Electronics
In an SR latch built from NOR gates, which condition is not allowed

 S=1, R=0
 S=1, R=1
 S=0, R=0
 S=0, R=1

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Digital Electronics
X' AND X' will result

 0
 1
 X
 X power 2

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

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

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Digital Electronics
The output of a NAND gate is low

 only when all the inputs are high
 only when all the inputs are low
 only when at least one input is low
 only when at least one input is high

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Digital Electronics
In VLSI, the number of gate circuits per chip is

 < 10,000
 10,000 to 99,999
 50,000 to 99,999
 > 10,000

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Digital Electronics
The number A = 01110000 and B = 10101111 are in 2’s complement form .Addition of above two number is

 011100001
 10101111
 11100000
 00011111

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