Interested to Buy Any Domain ? << Click Here >> for more details...
How earth resistance reduses by pouring water coal and salt?
- 4 Answers
- 23774 Views
- I also Faced
- E-Mail Answers
Answer Posted / 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 |
Post New Answer View All Answers
Main advantage of auto transformer over two windings transformer is that A it needs no cooling B it uses only one winding C core losses are reduced D it has simple construction
A 1F capacitor is charged to 100V initially. A 1H inductor is connected accros the capacitor througha a switch. The current in the circiut when the switch is closed is____
Advantage of LT panel vs HT panel
is all the servo motors having brake?please specify which servo motors having brake for stop on position and which are not.
What is the function of probe in cro?
What are the specifications for conducting earth leakage test as per IEC standard?
How much inductance or resistance require as a starter in series with induction motor of specific capacity(e.g. 5 hp) ? What is formula for it ?
How can we connect additional batteries to three phase ups? What are parameters we have to check when connecting?
sir please send me previous year questions of jspl of electrical section through which i could prepare myself fpr the test.
what is meant by brushed alternator & its working principle ?
can anybody sent me power grid questions. what subject should i prefer for preparation?
How we can calculate the consumption in kwh of motor on basis of kw @100% load, @50% load & @ no load.
Pl. share your experience about industrial-electronics repair of machine tool.
what is mppt (maximum power point tracking ) and how they used in solar power generation ??? what are the main components used in mppt?????
1. What is maximum permissible distance between smoke detectors ? 2. How do we decide number of smoke detectors required in a large office, warehouse, hall etc ? 3. What should be maximum height of smoke detectors ? 4. Where do we use heat detector, optical smoke detector, temperature sensitive detector ?
