How earth resistance reduses by pouring water coal and salt?
- 4 Answers
- 22283 Views
- I also Faced
- E-Mail Answers
Answer Posted / p mishra
Coal are the form of graphite which is a best conductor.So
for reducing the earth resistance we use coal.Like salt is
made of Na+ Cl-.These ions are good conductors of
electricity, hence the earth resistance does reduces when
salt is present on earth. Water conducts partially. So all
the materials when mixed the resistance/ohmic value is
reduced.
| Is This Answer Correct ? | 2 Yes | 0 No |
Post New Answer View All Answers
What is slip in an induction motor?
What is the most essential condition for the voltage build up for a d.c. Shunt generator?
What is the maximum operating temperature for a thermoplastic insulated cable?
What is the criteria for selecting the voltage classes of an AC Induction Motor.The KW rating above/below which ht/lt selection is made may be provided in details.
What are the disadvantages of hydropower?
In vapour absorption refrigeration machine fluids used are
What is the lower limit of break-down voltage of converter transformer.
WHY IS THE EARTH FAULT CURRENT ALWAYS LESS THAN THE NORMAL CURRENT??
If we have to find the inductance of a dc shunt motor then by giving dc supply or ac supply and what is the reason for it. (this example is from "to determine the transfer function of a dc shunt motor ")
What is Harmonics how it is produced and what is the method to control the same
can indirect loading be called as phantom loading?
how to Select Lighting arrester? What r the parameters to be considered for the selection of Lighting arrester ?
Define ohm’s law for a.c (alternating current)?
What is difference between start imitation and start interlock for 3 phase motor protection ?
A cylindrical wire is compressed in length by 10%. The percentage decrease in the resistance will be?????
