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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?

 2:3
 2:1
 1:2
 1:1

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Digital Electronics
When two n-bit binary numbers are added then the sum will contain at most

 (n + 2)-bit
 (n + n)-bit
 (n + 1)-bit
 n-bit

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Digital Electronics
If J = K (J and K are shorted) in a JK flip-flop, what circuit is made

 T flip-flop
 K flip-flop
 Shorted JK flip-flop
 SR flip-flop

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Digital Electronics
An n variable K-map can have

  nn cells
 n2n cells
 n2 cells
 2n cells

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Digital Electronics
Which circuit is used in between two systems having two different codes

 Combinational
 Sequential
 Both A and B
 Conversion

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Digital Electronics
A multiplexer is a combinational logic circuit used to perform the operation

 NOR-OR
 AND-OR
 AND-AND
 XOR-NAND

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