what will be the effect on a bulb in case its connetion is
change from live and neutral to live and ground???
1) in case of single phase AC supply
2) in case of DC supply.......???



what will be the effect on a bulb in case its connetion is change from live and neutral to live an..

Answer / k.prakashchandra

If the earthing is good ,the bulb will burn at almost full
phase voltage in case of AC.In DC ,the same if one polarity
is earthed, but if the ground potential is at +/- zero volt
by midpoint earthing,the bulb gets the half the full
voltage.

Is This Answer Correct ?    5 Yes 0 No

Post New Answer

More Electrical Engineering Interview Questions

whether choke act as a voltage regulator in tubelight or not?

1 Answers   Bhel,


what is load flow?

2 Answers  


what is MCCB?

8 Answers   NTPC,


hi.. i am krishna. i've complide my diploma engg.in electrical.i applied many places for jobs.but i am always fear from written test.ican't get success in it. i think my basic engg. is weak..show me some idea please..!

5 Answers  


What are various accuracy classes of CT(Current Transformer)

1 Answers  






On a 10 KVA UPS we have to provide a DC MCB for Battery bank of 16 nos (12 V 65 AH). What Shall be the current rating of DC MCB ?

6 Answers   RR, TNEB Tamil Nadu Electricity Board,


What is complex power?

1 Answers   DRDO,


WHAT IS THE USE OF ANTIPUMPING CONTACTOR IN HT BREAKERS

8 Answers  


In Indian Railways , how the AC motor is driven? Please explain clearly starting from the overhead 25kV supply.

1 Answers  


what is difference between 9kv 5ka surge arrester and 9kv 10ka surge arrester.

0 Answers   Voltamp,


Transformer Specification say 66/11KV, 23/27/35MVA OFDAN,what is OFDAN? we know ONAN,ONAF or OFAF

2 Answers   Siemens,


In what cases (circumstances)we should apply P controller, PD controller, PI controller & PID controller ?

0 Answers  


Categories
  • Civil Engineering Interview Questions Civil Engineering (5085)
  • Mechanical Engineering Interview Questions Mechanical Engineering (4451)
  • Electrical Engineering Interview Questions Electrical Engineering (16632)
  • 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)