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Digital Electronics

Digital Electronics
A hexadecimal odometer displays F 52 F. The next reading will be

F53O
F53F
F52E
G52F

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Digital Electronics
Which one of the following is 2’s complement of -68?

 11000100
 00111100
 10111100
 01111100

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Digital Electronics
A half adder has

 2 inputs and 1 outputs
 2 inputs and 2 output
 1 input and 2 outputs
 1 input and 1 output

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Digital Electronics
Which of the following is 2’s complement of +12?

 00000011
 00001100
 00001000
 01110011

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Digital Electronics
For a code to be self-complementing, the sum of all its weights must be

 9
 12
 10
 6

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Digital Electronics
Which one of the following is correct sequence of the numbers represented in the series(2)3, (10)4, (11)5, (14)6, (22)7,…………….

 2, 4, 6, 10, 12, …
 2, 3, 4, 5, 6, ….
 2, 4, 6, 10, 16……..
 2, 4, 6, 8, 10, …..

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