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Digital Electronics

Digital Electronics
Positive integers must be represented by

 signed numbers
 None of these
 unsigned number
 Both A and B

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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

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

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Digital Electronics
In MSI, the number of gate circuits per chip is

 < 500
 50 to 100
 12 to 99
 < 50

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Digital Electronics
The NAND gate can function as a NOT gate if

 all inputs are connected together
 one input is set to 0
 one input is set to 1
 inputs are left open

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Digital Electronics
The NAND-NAND realization is equivalent to

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

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Digital Electronics
How many input and output required for multiplexer ?

 Many input and one output
None of these
 One input and one output
 One input and many output

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