Can an insulator affect the electric field of a charged particle?

[qz27]

If the field is zero at all points on a surface, does this mean there is no net charge enclosed by the surface?

I thought if you had an insulator of some kind wrapping around the charged particle, it could have those properties. but i also feel that electric field will go through insulator..( like a magnet that's still magnetic even if its covered by a layer of wood)..

any help would be appreciated

 

[Doc Al]

If the field is zero at all points on a surface, does this mean there is no net charge enclosed by the surface?

Yes.

I thought if you had an insulator of some kind wrapping around the charged particle, it could have those properties.

I don't understand what you're saying here.

 

[qz27]

well, if there's a charged sphere, like a mouse ball, but the outside of it is wrapped in rubber, which will insulate it, would there be an electric field on the surface of the rubber?

 

[Doc Al]

Sure, why not?

 

[jtbell]

but the outside of it is wrapped in rubber, which will insulate it

Insulators block electric current, not the electric field.

 

[qz27]

thanks DOC Al and jtbell!
thats exactly what i needed to know but wasnt sure about!