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.???
Answer Posted / 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 |
Post New Answer View All Answers
How to select a cable size for particular load?
what is the responsibility of C license holder in industry?
what is meant by poly phase induction motor ? how its operating by single phase or three phase?
Why do we pefer VCB over OCB?What are the advantages of VCB over OCB?
What are the main significances of root locus?
i have seen one 8.4 MW synchronous motor in a plant located in bellary it is fixed with brushless rotary rectifier ,anybody can explain its start up principle
How relay works, reverse relay, master relay, os relay, earth fault relay and what is its setting point
Is there a diode made that works with AC 120 volt 20 amp? If so can it completely stop all current flow in 1 direction at all times?
If the feeder rating is 7.5 kw or 10 HP star-delta feeder, MCCB is taken as 63 a, contactors-32 a, how much will be the OLR rating or which range OLR should be considered when we concern about type-2 coordination?
Do Phase angle measurement have any application in freq/harmonics measurement? If so how?
What is the feedback in the control system?
Which type of a.c motor is used in the fan (ceiling fan, exhaust fan, pedestal fan, bracket fan etc) which are find in the houses ?
how to identify vector group of three phase transformer by voltage method?
What are the conditions to be satisfied for parallel operation of dc generators?
What are the site acceptance tests for power cables, DG Sets, LT panels & 30kVA UPS ?