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Digital Electronics

Digital Electronics
2's Complement of 10101011 is

 00111100
 01010101
 10101100
 10101011

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Digital Electronics
The switch which clears a flip-flop is know as

 Clear
 Reset
 Both A and B
 None

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Digital Electronics
(11011) 2 in BCD 8421 code is

 00011011
 00100111
 01101100
 11011001

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Digital Electronics
The codes in which each successive code word differs from the preceding one in only one bit position are called

 sequential codes
 BCD codes
 self-complementing codes
 cyclic codes

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Digital Electronics
Which of the following is 1’s complement representation of -34?

 11011101
 01011101
 11011110
 10100010

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Digital Electronics
How many numbers are used in the decimal number system?

 0 to 10
 1 to 10
 0 to 9
None of these

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