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Digital Electronics

Digital Electronics
Which number system has a base of 16

 None
 Decimal
 Hexadecimal
 Octal

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

 50,000 to 99,999
 > 1,00,000
 > 50,000
 1,00,000 to 10,00,000

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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°.
 Perpendicular.
 Inclined at 30°.

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Digital Electronics
2's Complement of 10101011 is

 01010101
 00111100
 10101011
 10101100

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Digital Electronics
For the design of a combinational circuit with four inputs using only NAND gates, the number of K-maps required for the simplification process is

 4
 1
 2
 0

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Digital Electronics
For a code to be self-complementing, the sum of all its weights must be

 9
 6
 12
 10

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