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Digital Electronics

Digital Electronics
How many numbers are used in the decimal number system?

None of these
 1 to 10
 0 to 10
 0 to 9

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

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Digital Electronics
The output of a NOR gate is high

 only when at least one input is high
 only when all the inputs are high
 only when all the inputs are low
 only when at least one input is low

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Digital Electronics
A gate is enabled when its enable input is at logic 1. The gate is

 NOR
 NAND
 OR
 none of these

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Digital Electronics
What is the requirement of fullsubstractor circuit ?

 Three inputs and two outputs
 Three inputs and one output
 Two inputs and two outputs
 Two inputs and three outputs

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Digital Electronics
The fan put of a 7400 NAND gate is

2TTL
5TTL
8TTL
10TTL

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