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Digital Electronics

Digital Electronics
Which one of the following is 2’s complement of -68?

 10111100
 11000100
 01111100
 00111100

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Digital Electronics
Which mechanism allocates the binary value to the states in order to reduce the cost of the combinational circuits?

State Assignment
State Evaluation
State Reduction
State Minimization

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Digital Electronics
The terms which cannot be combined further in the tabular method are called

 implicants
 prime implicants
 selective prime implicants
 essential prime implicants

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Digital Electronics
The NAND-NAND realization is equivalent to

 NOT-OR realization
 AND-OR realization
 OR-AND realization
 AND-NOT realization

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Digital Electronics
Switching circuits are

 hybrid circuits
 digital circuits
 analog circuits
 none of these

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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

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

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