why is there -48 v DC voltage use in CISCO Router.?? is there any advatage to use this type of negative voltage rather than positive voltage??

1 Answers  

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im ranjith having 63%in my b tech with 25 backlogs,cleard all .. im having 1100 in gre and 90 in my toefl can i get visa? im planning spring 2011 pls help me i applied for i20 im applying 4 universities pls help me can i get visa? shall i prefer canada if i could not get visa?

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what is CFC logic in communication system? where do we require this for protection system

3 Answers   ABB,

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Dear concern Plz provide me the solved papers of Railway section engineer in signal...

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What is PLC ? What it does ? What are its components ? When & where we use PLC & How ? What are its Pros & Cons over other things ? What are the main faults that occur in it ? What are other devices that are similar to it and how we can compare them all ?

0 Answers   Pricol,

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I have Completed my diploma in Electronics in year 2009.I got low score in TOEFL.SO what should i do to get the visa...I am confident that I will get the visa..But probable chances for getting visa....and i also got I20 and paid Visa interview fees.....

0 Answers   Halonix,

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What is the function of Bias Tee (BPxx) input Which power supply card required for Ultra BTS for DC 24V input What is the state if the GREEN LED is glowing on PWSx card

0 Answers   NSN,

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what its mean 'inverter based technology' ? if we talk about refrigerators, splits ACs etc how it helps to produce & keep more coolness and chilled atmosphere ?

0 Answers   TCS,

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Define what happens to the conductivity of semiconductor with the rise in temperature? Compare with the conductivity of metals.

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how will u grow this company?

4 Answers   HCL,

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Mention some of the applications of controlled rectifier?

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If anybody have technical test papers for HPCL. Pls, mail me on akanksha417@yahoo.com.

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