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Digital Electronics

Digital Electronics
The binary number 10101 is equivalent to decimal number ___________.

21
12
19
27

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Digital Electronics
For the design of a combinational circuit with four inputs using only NAND gates, the number of K-maps required for the simplification process is

 1
 4
 0
 2

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

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

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Digital Electronics
X + X.Y = ?

 0
 Y
 1
 X

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Digital Electronics
Why encoder is used in the digital electronics ?

 To convert non coded information into coded form
 It is used to separate address bus and data bus
 To convert coded information into non coded form
None of these

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Digital Electronics
Which of the following gate is a two-level logic gate

NOT gate
NAND gate
EXCLUSIVE OR gate
OR gate

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