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Digital Electronics

Digital Electronics
If a Hexadecimal number needs to convert to binary. For each hexadecimal digit, there will be how many bits

 2
 8
 4
 1

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Digital Electronics
Which circuit is used in between two systems having two different codes

 Conversion
 Sequential
 Combinational
 Both A and B

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Digital Electronics
The NAND gate is AND gate followed by ___________.

NOT gate
AND gate
None of these
OR gate

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Digital Electronics
A three-state buffer has the following output states

 High, Low, Float
 Both A and B
 Set, Reset, Halt
 1, 0, float

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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
In Boolean algebra A.A is equal to

 2A
 A
 A²
 1

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