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Digital Electronics

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

 3
 1
 4
 2

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Digital Electronics
A demultiplexer is a

 N-to-1 device
 1-to-N device
 1-to-1 device
 N-to-N device

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Digital Electronics
A device which converts decimal number into BCD form is called

 code converter
 encoder
 multiplexer
 decoder

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Digital Electronics
The output of a logic gate is 0 when all its inputs are at logic 0. The gate is either

 an AND or a NOR
 an OR or an X-OR
 a NAND or an X-OR
 an OR or an X-NOR

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Digital Electronics
The codes in which each successive code word differs from the preceding one in only one bit position are called

 sequential codes
 BCD codes
 self-complementing codes
 cyclic codes

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Digital Electronics
Which number system has a base of 16

 Hexadecimal
 Octal
 None
 Decimal

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