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Digital Electronics

Digital Electronics
8421 code is

 weighted code
 alphanumeric code
 self-complementing code
 non-weighted code

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

 AND-AND
 AND-OR
 NOR-OR
 XOR-NAND

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Digital Electronics
What is the difference between xor gate and exor gate.

 xor gives one output while exor gives two
 xor and exor are complement of each other
 xor gives two outputs while exor gives one
 both are same

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Digital Electronics
Why decoder is used in the digital electronics ?

 It is used to separate address bus and data bus
 To convert coded information into non coded form
None of these
 To convert non coded information into coded form

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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

 101001
 001000
 100111
 0001111

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Digital Electronics
In a T flip-flop no of input circuit is

 2
 4
 3
 1

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MORE MCQ ON Digital Electronics

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