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Digital Electronics

Digital Electronics
A combinational circuit can be designed using only

 OR and X-NOR gates
 OR gates
 NOR gates
 AND gates

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Digital Electronics
Which of the following logic circuits is the fastest ?

 TTL.
 All have same speed.
 DTL.
 RTL.

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Digital Electronics
Why decoder is used in the digital electronics ?

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

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Digital Electronics
A self-complementing code for the decimal digits is created using the weight 4 4 3 -2. The value of 8592 in the code is

 1000 0101 1001 0010
 1100 1011 1111 1001
 1100 0111 1111 0011
 1100 1001 1111 1000

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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

 100111
 101001
 001000
 0001111

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

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