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Digital Electronics

Digital Electronics
Consider the operation 24+17 = 40 .What is the correct base of number so that operation is correct?

 11
 12
 10
 13

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Digital Electronics
A small circle or dot on top of an IC represents

 Pin1
 Pin2
 Pin14
 Pin13

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Digital Electronics
OR operation is equivalant to

 Both B and C
 Intersection
 Union
 Division

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Digital Electronics
The base of the number system for the addition operation 24 + 14 = 41 to be true is

 6
 5
 7
 8

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Digital Electronics
The voltages corresponding to LOW and HIGH levels respectively are given below. Identify the voltages which correspond to positive logic system.

 –1.5 V and – 5 V
 1 V and -5 V
 5 V and 0 V
 0 V and 5 V

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Digital Electronics
The output of a NAND gate is low

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

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