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Digital Electronics

Digital Electronics
The output of a gate is LOW when at least one of its inputs is HIGH. This is true for

 OR
 NOR
 AND
 NAND

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Digital Electronics
A bubbled NAND gate is equivalent to a

 NAND gate
 OR gate
 X-OR gate
 NOR gate

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Digital Electronics
In Boolean algebra A.A is equal to

 A
 A²
 2A
 1

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Digital Electronics
8421 code is

 non-weighted code
 alphanumeric code
 weighted code
 self-complementing code

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Digital Electronics
A combinational circuit can be designed using only

 OR and X-NOR gates
 OR gates
 AND gates
 NOR gates

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

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