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Digital Electronics

Digital Electronics
The output of a gate is LOW if and only if all its inputs are HIGH. It is true for

 NAND
 NOR
 X-NOR
 AND

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Digital Electronics
Which circuit is used in between two systems having two different codes

 Combinational
 Conversion
 Both A and B
 Sequential

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

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Digital Electronics
Which GATE IS CALLED INEQUALITY COMPARATOR?

 2. AND
 3. XOR
 1. NOR
 4. NOT

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Digital Electronics
When will be the output of an AND gate is HIGH if there are three inputs, A, B, and C ?

 A = 1, B = 0, C = 1
 A = 0, B = 0, C = 0
 A = 1, B = 1, C = 1
 A = 1, B = 1, C = 0

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Digital Electronics
The number of comparators in a parallel conversion type 8-bit analog to digital converter is

 256.
  8.
  255.
 16.

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