Earth Is a very good conductor or very good insulator.? If
a good conductor then why current donot flow through small
piece f earth and if a good insulator then why we use it as
return path in lines.???

Answers were Sorted based on User's Feedback



Earth Is a very good conductor or very good insulator.? If a good conductor then why current donot..

Answer / tariq

Yes earth is a good conductor. But to use earth as a
conductor there are specific methods e.g. earthing etc.In
other words we can say that without moisture the earth acts
as an insulator but when there is moisture the the earth
behave like a good conductor.So, in a small piece of earth
if there is moisture then it will act as a conductor.

Is This Answer Correct ?    81 Yes 13 No

Earth Is a very good conductor or very good insulator.? If a good conductor then why current donot..

Answer / hiren

earth conductivity depends upon soil resistivity which is different at different points. If it has more minerals, moistures than it will work as conductor but we cant keep soil resistivity constant. Thats why we can not use.

Is This Answer Correct ?    27 Yes 6 No

Earth Is a very good conductor or very good insulator.? If a good conductor then why current donot..

Answer / lokeshraj

Thanx TARIQ your answer was quite good, it helped me a lot,
thanx..

Is This Answer Correct ?    11 Yes 5 No

Earth Is a very good conductor or very good insulator.? If a good conductor then why current donot..

Answer / khaleel

in electrical system we are taking Earth as a good conductor..
and the conducting property feels for hing value of
current..so it is considering as a return path in Earth
faults.....tec

Is This Answer Correct ?    13 Yes 12 No

Earth Is a very good conductor or very good insulator.? If a good conductor then why current donot..

Answer / ramesh.a

Because of soil contain temperature due to this some amount of wet was present due to this wet they act as good conducted that's why we ground return circuit to deep bottom.

Is This Answer Correct ?    2 Yes 2 No

Earth Is a very good conductor or very good insulator.? If a good conductor then why current donot..

Answer / k.prakashchandra

Earth is not a non-conductor nor a good conductor. It becomes good conductor due to its size . But the resistance between earth electrode and the earth can not be made zero easily and economically . In SWER system earth is used as return path

Is This Answer Correct ?    0 Yes 8 No

Post New Answer

More Electrical Engineering Interview Questions

sir plz send some previous year questions of jspl.

0 Answers  


iam interesting to design the control panel for 3 phase pump motors by controling single phase switches.iam plan to use fuse,contactor & relay for motor protection .how can i select the voltage & amps rating for fuse,contactor & relay plz guide me .if anybody clarify my doubt means it will more helpful for my future .

1 Answers  


what causes contact chatter when there is no demand on the air conditioning unit?

0 Answers  


What happen if 200 KVAR capacitor connected to power continuesly?

0 Answers  


which tap of the transormer you will use in critical condition(worst)?

1 Answers  






what does mean of RCT and STR in diffrential CT?

0 Answers  


what should we do when the CT secodary gets open? how do we short circuit it? using tester or screw driver? not dangerous?

6 Answers  


Why air gap in rotating machines should be small?

3 Answers  


some time we open engine breaker 8.0 MW load but plant not trip. and another time engine open 4.0 MW load engine trip why? individually engine breaker open & individually emergency stop why difference?

0 Answers  


in the directional overcurrent and earthfault protection,normally we are setting the angle 45 deg lead for phase fault overcurrent and -45 deg lead for earthfault fro forward direction.but both the fault are operating on the same angle region only.why?how the relay will response?

0 Answers  


Difference between HRG and NGR. Are they both the same thing

0 Answers  


Why IR value of the (HT cable Plus synchronous motor) is less while individually having IR values in GΩ?

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)