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Categories >> Engineering >> Electrical-Engineering
 
 
 
Question 
What is the differance between negative dc voltage and 
positive dc voltage because some circuit uses -24,-5,-12,-
15,volt dc supply
 Question Submitted By :: Balbir
I also faced this Question!!     Rank Answer Posted By  
 
Answer
 
Negative & Positive polority plays major role in case of 
Electronics Devices.We may aware of simple electronics 
components Diode,Transistor,etc are made of PN junctions.
For proper conductions & baising,Blocking Polority of the 
circuits is very important
 
0
Balaji
 
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