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Digital Electronics

Digital Electronics
What is the minimum number of 2 input NAND gates used to perform the function of 2 input OR gate

 4
 1
 3
 2

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Digital Electronics
The implicants which will definitely occur in the final expression are called

 essential prime implicants
 prime implicants
 selective prime implicants
 redundent prime implicants

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Digital Electronics
When will be the output of a NOT gate is HIGH ?

None of these
 the input is LOW
 the input is HIGH and LOW
 the input is HIGH

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Digital Electronics
The output of a NAND gate is low

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

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Digital Electronics
The state of a flip-flop can be switched by changing its ________ signals.

 output
 triggering
 input
 clearing

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Digital Electronics
X = 01110 and Y = 11001 are two 5-bit binary numbers represented in 2’s complement format. The sum of X and Y in 2’s complement format using 6 bits is

 001000
 100111
 101001
 0001111

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