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Digital Electronics

Digital Electronics
In Boolean algebra A.A is equal to

 A
 A²
 2A
 1

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Digital Electronics
Which of these sets of logic gates are designated as universal gates?

 NOR, NAND.
 OR, NOT, AND.
 NOR, NAND, XNOR.
 XOR, NOR, NAND.

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Digital Electronics
A gate is enabled when its enable input is at logic 0. The gate is

 NOR
 none of these
 NAND
 AND

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Digital Electronics
Convert the binary number (1111000011110000) to hexadecimal number

 1010
 5050
 F0F0
 7070

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

 clearing
 input
 triggering
 output

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Digital Electronics
The inputs of a NAND gate are connected together. The resulting circuit is ___________.

None of these
AND gate
OR gate
NOT gate

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