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Digital Electronics

Digital Electronics
Combinations that are not listed for the input variables are

 Don't Care
 Borrow
 Overflow
 Carry

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Digital Electronics
Why small bubble is given on the output of the NAND gate symbol ?

None of these
 Output is inverted
 Tristate
 Open collector output

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

 four
 three
 two
 one

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Digital Electronics
Which of the following is a digital device

 Resistance of a material
 Light switch
 Regulator of a fan
 Microphone

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Digital Electronics
Which one of the following is correct sequence of the numbers represented in the series(2)3, (10)4, (11)5, (14)6, (22)7,…………….

 2, 4, 6, 10, 12, …
 2, 3, 4, 5, 6, ….
 2, 4, 6, 10, 16……..
 2, 4, 6, 8, 10, …..

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Digital Electronics
X + X.Y = ?

 X
 0
 Y
 1

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