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Digital Electronics

Digital Electronics
Positive integers must be represented by

 None of these
 unsigned number
 signed numbers
 Both A and B

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Digital Electronics
The boolean algebra is mostly based on

 Standard theorem
 Boolean theorem
 De Morpans theorem
 De Morgans theorem

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Digital Electronics
The 1’s complement of 11010111 is

 00101000
 10101000
 10101000
 11101000

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Digital Electronics
For the design of a combinational circuit with four inputs using only NAND gates, the number of K-maps required for the simplification process is

 2
 0
 4
 1

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Digital Electronics
The effect of stray magnetic field on the actuating torque of a portable instrument is maximum when the operating field of the instrument and the stray fields are

  Parallel.
 Perpendicular.
 Inclined at 30°.
 Inclined at 60°.

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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

 self-complementing codes
 BCD codes
 cyclic codes
 sequential codes

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MORE MCQ ON Digital Electronics

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