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Digital Electronics

Digital Electronics
What logic function is produced by adding an inverter to each input and output of an AND gate?

 OR
 X-OR
 NOR
 NAND

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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°.
  Parallel.
 Perpendicular.
 Inclined at 60°.

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Digital Electronics
What is the 2’s complement of 10110000?

 10001110
 01001111
 01010000
 10110000

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Digital Electronics
The data bus width of a ROM of size 2048 × 8 bits is

 16
 10
 12
 8

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Digital Electronics
What is the logic which controls a stair case light associated with two switches A and B located at the bottom and top of the stair case respectively?

 OR
 AND
 X-NOR
 X-OR

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Digital Electronics
Simplified form of the function f = (x+y+xy)(x+z)

 x+y
 x+yz
 y+xz
 x+xyz

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MORE MCQ ON Digital Electronics

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