How earth resistance reduses by pouring water coal and salt?
Answers were Sorted based on User's Feedback
Answer / promise mbanga
Looking at this question from the chemistry point of view,
l can confidently say:
(i) Coal in form of graphate, is a good conductor of
electricity due to a free electron wondering around it's
bonds, hence the resitance of earth reduces due to the
presents of coal.
(ii) Salt in solution for does ionise to Na+ and Cl-
ions. These ions are good conductors of electricity, hence
the earth resistance does reduces when salt is present on
earth.
(iii) Water does partially ionise to give H3O+ and OH- ions
which conduct electricity. This also reduces the earth's
resistance.
Is This Answer Correct ? | 35 Yes | 2 No |
the hard water is one of the good conductor of elecricity
as explained in ship earthing.
the mixing of these things in earth makes the earth
conductive n hence reduces the earth resistance.
Is This Answer Correct ? | 21 Yes | 3 No |
Answer / gkumar
Hi,
Both coal & salt acts as good conductor of electricity .
also when they are mixed & put in the earthing pit they
provide conductivity as well as moisture for better passage
of current
Is This Answer Correct ? | 8 Yes | 2 No |
Answer / 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 |
difference between ac and dc generators
placing earthing pit in pathway is correct or wrong??. placing earthing wireGI1/18 inside walls is correct or wrong?. explain!!!
in ring main system we use the isolater b/w transfer bus and main bus if we r not use isolatar than wat will be the effect in our sys.
220/33kv voltage level having 60MVA rating , which transformer is preferred two winding or auto transformer. why, kindly provide your strong technical valuable views.
what is the different between second harmonics and third harmonics ?
How to calculate ant test the burden of Current transformer
Usage of flywheel diode in relays
what is the name of the oil is used in transformer?
Connection diagram for KW meter and Kva meter
is dc shunt moter oprate on ac? if no why? if yes how?
8 Answers IOCL, JJJ, Power Grid,
Star Delta Diagram with full description
0 Answers SKS Microfinance, Syscom,
For a certain load i need 100kw load ,In that case what rating mccb should i use?