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Digital Electronics

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

 three
 two
 four
 one

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Digital Electronics
(1D)16 in BCD 8421 code is

 00100100
 00101001
 00011111
 00011101

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Digital Electronics
When will be the output of a NOT gate is LOW ?

 the input is LOW.
None of these
 the input is HIGH.
 the input is HIGH and LOW.

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Digital Electronics
A self-complementing code for the decimal digits is created using the weight 4 4 3 -2. The value of 8592 in the code is

 1000 0101 1001 0010
 1100 1001 1111 1000
 1100 1011 1111 1001
 1100 0111 1111 0011

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Digital Electronics
What is the difference between xor gate and exor gate.

 xor gives two outputs while exor gives one
 both are same
 xor and exor are complement of each other
 xor gives one output while exor gives two

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Digital Electronics
When an input signal 1 is applied to a NOT gate, the output is ___________.

Either 0 & 1
1
None of these

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