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Digital Electronics

Digital Electronics
Switching circuits are

 digital circuits
 analog circuits
 hybrid circuits
 none of these

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Digital Electronics
NAND. gates are preferred over others because these

have lower fabrication area
provide maximum density in a chip.
can be used to make any gate
consume least electronic power

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Digital Electronics
ASCII code is a

 8-bit code
 7-bit code
 5-bit code
 10-bit code

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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.
 Inclined at 60°.
  Parallel.

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Digital Electronics
Which of the following gates is known as a coincidence detector?

 NAND gate
 X-OR gate
 X-NOR gate
 AND gate

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Digital Electronics
Which of the following gates cannot be used as an inverter?

 AND
 NOR
 NAND
 X-NOR

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