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Digital Electronics

Digital Electronics
The number of 1 in 8-bit representation of 127 in 2’s complement form is m and that in 1,s complement form is n. What is the value of m:n?

 2:1
 1:1
 1:2
 2:3

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Digital Electronics
How many stable state/states present in flip-flop ?

 3
 2
 4
 1

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Digital Electronics
One bit full adder has ________ outputs.

 4
 any number
 2
 3

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Digital Electronics
In which of the following base systems is 123 not a valid number?

Base 3
Base 8
Base 10
Base 16

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Digital Electronics
AND-OR realization of a combinational circuit is equivalent to

 NAND-NOR realization
 NOR-NOR realization
 NAND-NAND realization
 NOR-NAND realization

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Digital Electronics
The number FF in base-16 systems will be equal to ________ in binary system.

 11111111
 10011001
 10101010
 11101110

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