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Digital Electronics

Digital Electronics
How many NOR gates are required to obtain AND operation?

 2
 1
 4
 3

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Digital Electronics
A multiplexer is a combinational logic circuit used to perform the operation

 XOR-NAND
 NOR-OR
 AND-OR
 AND-AND

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

 12
 10
 9
 6

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Digital Electronics
What is/are the configurable functions of each and every IOBs connected around the FPGA device from the operational point of view?

Input operation
Tristate output operation
All of these
Bi-directional I/O pin access

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

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

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Digital Electronics
Which of the following is not a transmission medium?

  Modem.
 Coaxial cables.
 Telephone lines.
 Microwave systems.

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