Golgappa.net | Golgappa.org | BagIndia.net | BodyIndia.Com | CabIndia.net | CarsBikes.net | CarsBikes.org | CashIndia.net | ConsumerIndia.net | CookingIndia.net | DataIndia.net | DealIndia.net | EmailIndia.net | FirstTablet.com | FirstTourist.com | ForsaleIndia.net | IndiaBody.Com | IndiaCab.net | IndiaCash.net | IndiaModel.net | KidForum.net | OfficeIndia.net | PaysIndia.com | RestaurantIndia.net | RestaurantsIndia.net | SaleForum.net | SellForum.net | SoldIndia.com | StarIndia.net | TomatoCab.com | TomatoCabs.com | TownIndia.com
Interested to Buy Any Domain ? << Click Here >> for more details...


WHY THE +VE POLARITY OF 48V DC POWER SUPPLY IS USUALLY
GROUNDED?



WHY THE +VE POLARITY OF 48V DC POWER SUPPLY IS USUALLY GROUNDED?..

Answer / neeraj singh

Sorry, but this:
"negative because - it reduces the chances of Noise ,, as
noise tends to add more towards +ve signal "
is garbage. Electrical noise picked up on a conductor is not
affected by the potential of the conductor.

This too is drivel: "as in higher DC voltages , one may
stick to the conductor ( In higher AC however you may be
thrown off )"

It's an old wives tale, nothing more. When subjected to a
shock, your muscles contract. In an Ac shock, they do not
contract and expand at the line frequency (50/60Hz).
Generally if you get a belt to the hand, your arm folds at
the elbow and your fingers close. That may throw you off, or
it may close your grip... ac or dc makes no difference.

Is This Answer Correct ?    3 Yes 1 No

Post New Answer

More Electrical Engineering Interview Questions

how to calculate the ac and dc wire losses with calculations plz tell me

3 Answers   Apollo,


what is the different bitween ETP & WTP

1 Answers   Square Pharma,


what is power factor

7 Answers   Eskom,


The series field winding has low resistance while the shunt field winding has high resistance. Why?

0 Answers  


What is the need for a controller?

0 Answers  


if we appling capacitor at above rated what are looses and what will be happen

4 Answers   Radiant, Real Estate,


Why Transformer in KVA?

41 Answers   APCPDCL, Apollo Power, College School Exams Tests, Electrical Tech, Hitech, HP, L&T, MDL, Oil and Gas Jobs, TATA,


Why stand-by earth fault relay and restricted earth fault relays are connected between neutral and ground in transformer?

1 Answers  


what should be the megger test report for 11KV cable when meggered with 5KV megger , what is the resistance value we should get

7 Answers  


1.What is the maximum transmission voltage in india & where it is located? 2.more information about indian power scenario.

4 Answers  


Where I can get the sample question for post of Junior engineer electrical-II For RRB Bhubaneswar.

0 Answers   Noida Power,


difference between ac series and parallel circuit

0 Answers  


Categories
  • Civil Engineering Interview Questions Civil Engineering (5086)
  • Mechanical Engineering Interview Questions Mechanical Engineering (4456)
  • Electrical Engineering Interview Questions Electrical Engineering (16639)
  • Electronics Communications Interview Questions Electronics Communications (3918)
  • Chemical Engineering Interview Questions Chemical Engineering (1095)
  • Aeronautical Engineering Interview Questions Aeronautical Engineering (239)
  • Bio Engineering Interview Questions Bio Engineering (96)
  • Metallurgy Interview Questions Metallurgy (361)
  • Industrial Engineering Interview Questions Industrial Engineering (259)
  • Instrumentation Interview Questions Instrumentation (3014)
  • Automobile Engineering Interview Questions Automobile Engineering (332)
  • Mechatronics Engineering Interview Questions Mechatronics Engineering (97)
  • Marine Engineering Interview Questions Marine Engineering (124)
  • Power Plant Engineering Interview Questions Power Plant Engineering (172)
  • Textile Engineering Interview Questions Textile Engineering (575)
  • Production Engineering Interview Questions Production Engineering (25)
  • Satellite Systems Engineering Interview Questions Satellite Systems Engineering (106)
  • Engineering AllOther Interview Questions Engineering AllOther (1379)