¿ªÔÆÌåÓý

ctrl + shift + ? for shortcuts
© 2025 Groups.io

Re: The need to know!


Jim Purcell
 

Rama,
?Charge is stored on the plates and the energy in the gap between the plates.

No that was not my point, correct or not I was saying that the energy is stored in the e.s. field not on the plates or in the dielectric. Just energy stored in an inductor is stored in the mag. field.

This energy results from the field between the positive and negative charges on the plates.

Yes, the parameters of the field are determined by the size of the plates, their distnce apart, i.e. the thickness of the dielectric and the dielectric constant.

The dielectric helps in keeping the charge apart.

I think it would be misleading to say that, in one sense it's true but that's not it's purpose.?

The maximum amount of charge that can be kept apart depends on the dielectric.

Now that language is becomming more grotesque and losing meaning, I don't about keeping charge apart. .

In case the amount exceeds this level, then the dielectric breaks down

Your mixing dielecric constant with dielectric strength.

and the capacitor gets discharged real fast.

Are you talking leakage due to exceeding dielecric strength?

The dielectric also helps in???? chanellising

What does that word meain? If you had plates that had less area than the dielectric, I think the dielectric that was 'sticking out' would be as it it weren't there. Like lunch meat that sticks out of the sandwich. :-)

the field between the plates - this results in different capacitances for different dielectrics if the area of the plates and the distance between them remains the same.

Yes, I think that the distance between the plates is more important than dielectric thickness. If the plates were farther apart than the dielectric thickness you'd have a mixture of dielectrics, the normal dielectric plus some air (or vacuum.)

Jim

Join [email protected] to automatically receive all group messages.