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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
Which of the following gate is a two-level logic gate

NAND gate
NOT gate
OR gate
EXCLUSIVE OR gate

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Digital Electronics
To get an excess-3 code from BCD code

 0011 is added
 0110 is subtracted
 0110 is added
 0011 is subtracted

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Digital Electronics
1’s complement of 17 is

  01110.
 11100.
 10111.
 10001.

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

 X-OR
 NOR
 NAND
 X-NOR

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Digital Electronics
If in a base b number system, 54/4=13, the base of the number is

 9
 7
 6
 8

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