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Digital Electronics

Digital Electronics
Maximum number in decimal that can be represented by 4 bits (binary) is

 7
 4
 15
 16

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Digital Electronics
What is the minimum number of 2 input NAND gates used to perform the function of 2 input OR gate

 2
 3
 1
 4

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

 AND
 NOR
 X-NOR
 NAND

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Digital Electronics
The main criterion in the design of a digital circuit is reduction of

 cost
 volume
 weight
 size

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Digital Electronics
Which of the following is equivalant to an ODD function

 AND-NOR
 XOR
 XNOR
 NOR

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Digital Electronics
The number of rows in the truth table of a 4-input gate is

 16
 12
 8
 4

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