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Why is it beneficial to add a dielectric between the plates of a capacitor?

Datnigerian

wrote...

Posts: 80

Rep:

11 years ago

Why is it beneficial to add a dielectric between the plates of a capacitor?

What do they mean by the dielectric constant?

Read 375 times

1 Reply

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LenChan64

wrote...

#1

11 years ago

If you put a material with a dielectric constant of 80 between the plates of a capacitor, you increase its capacitance to 80 times what it would be if there was a vacuum between the plates. So it's a way to increase capacitance without increasing its size. Everyday capacitances are very small. Typically you can only store a few microjoules of energy by charging an ordinary capacitor.

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