whats the difference between bad conductors , insulators and dielectric

Question

hartnn · Answer

insulators does not allow flow of electric charges at all..
Bad conductors are those which can conduct electricity but offers more opposition (resistance) to the flow of current compared to the flow of current in a good conductor.

hartnn · Answer

Dielectrics are used to store the electric charges,

hartnn · Answer

all dielectrics are insulators , but all insulators are not dielectric

hartnn · Answer

u need examples ?

anonymous · Answer

but then some book say 'dielectric are insulators'

anonymous · Answer

yeah for sure

hartnn · Answer

yes, all dielectrics are insulators, they don't allow the flow of electric charges through them
bad :Drinking water,iron 
insulators:kerosene, umm...let me think

hartnn · Answer

rubber is an insulator

anonymous · Answer

dielsctrics?

anonymous · Answer

dielectrics*

hartnn · Answer

insulator :glass, air, vacuum, polyethylene,
wait.

hartnn · Answer

dielectrics :porcelain (ceramic), mica, glass, plastics, and the oxides of various metals

hartnn · Answer

need more explanation on any of these ?

anonymous · Answer

thanks hope i got it!

anonymous · Answer

bt pls explain wat are dielectrics actually mean?

hartnn · Answer

know about capacitor ?

hartnn · Answer

A dielectric is an electrical insulator that can be polarized by an applied electric field.

hartnn · Answer

because of polarization , positive charges are displaced toward the field and negative charges shift in the opposite direction.

hartnn · Answer

the air between plates of capacitor acts as di-electric

anonymous · Answer

yeah i knw that,,,, i wanted to knw what will happen when it is introduced in conduction process

hartnn · Answer

they won't conduct, instead they will store the energy in them.

anonymous · Answer

really k thanks for ur help

hartnn · Answer

i hope i helped. welcome :)