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Digital Electronics

Digital Electronics
What logic function is produced by adding inverters to the inputs of an OR gate?

 AND
 NAND
 NOR
 X-NOR

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Digital Electronics
The number of Boolean functions that can be generated by n variables is equal to

2n
2n
2n-1
22n

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Digital Electronics
The binary code of (21.125)10 is

10100.111
10101.001
10100.001
10101.01

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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

 100111
 001000
 0001111
 101001

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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
If a counter having 10 flip flops is initially at 0, What count will if hold after 2060 pulses?

  000 000 1000.
  000 000 1100.
 000 001 1100.
 000 000 1110.

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