Interested to Buy Any Domain ? << Click Here >> for more details...
What is the difference between Dielectric and Insulator
- 9 Answers
- 32115 Views
- I also Faced
- E-Mail Answers
Answer Posted / ktrao_srikakulam
Insulators are substances which permit very less current flow through them. Substance such as porcelain, wood are examples. Dielectrics are also insulators. But, more specifically, they are materials which can be polarized. In dielectric materials, the electrons are bound to the nucleus and have limited movement. When an external voltage is applied to the dielectric, the nucleus of the atoms is attracted to the negative side and the electrons are attracted to the positive side. Hence, the material gets polarized. This is a key feature of a dielectric.
Thus all dielectrics are insulators, but all insulators are not dielectrics. A dielectric can thus store charge. This characteristic makes it very useful in the form of capacitors.
Dielectric substances conduct very little electricity but are good supporters of electric fields. They also dissipate very less energy, i.e. have low dielectric loss.
| Is This Answer Correct ? | 1 Yes | 0 No |
Post New Answer View All Answers
what is the function of anti pumping relays? what is KVAR? How it is generated in alternator? What is 3rd Harmonics? What is IDMT relay?
what will happen if there is a voltage leakage or current leakage in an electrical train
what is V.L.F. testing of power cable? do you know the voltage ratings, like for what rating and size of cable what rating of V.L.F. testing is used?
Explain what is electric traction? Explain few advantages of electric traction system?
What is resolver and glass scale in CNC how they work?
Why are the cores of large transformers built up of circular transactions ?
What are the types of the glands and difference between single and double compression type of cable Glands.
How to measure the earth resistance value in a concrete pavement(flood light area)?
why swityard is necessrry requirement in any bis power distributin systems?
how electical engineer is related to apsrtc (general) post? if they ask a question in interview as why did u choose this job what shd be answer
Why use the vcb at high transmission system ? Why can’t use acb?
if you are in a software company,then why do you want to come in a core company like sail, ntpc(where lots of trouble like tension but you have a good life in a it company) ?
What is the accepted limit to increase the choosen transformer capacity over the load and why ?
What is the reason for using a GE G101 MCB in place of an EP102 MCB if both are capable of AC circuit protection?
How to check the cable fault / hv test of transformer cable.
