- #1

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- 31

- 3

- Homework Statement
- find the Electric field between a capacitor when dielectric is placed between them

- Relevant Equations
- Eext=E/k(E: field between capacitor plates when no dielectric is put

my sir gave us the above question as homeork,our task to derive why it happens so I couldnt get it right. So today he gave the answer to it. we were also a..sked to find the induced charges on the dielectric surface.

.

E ext : electric field between capacitor plates when no dielectric was put

E ind : electric field due to induced charges .

E inside : electric field net inside the dielectric

q<sub>i</sub> : charge induced

. Here i had an issue with the expression of Eind , Because we are defining it for a point inside the dielectric i felt the denominator must have a factor of K.

Later i went to the internet and referred my books , i found that everywhere it is written same way. What did i think wrong

. please explain

.

E ext : electric field between capacitor plates when no dielectric was put

E ind : electric field due to induced charges .

E inside : electric field net inside the dielectric

q<sub>i</sub> : charge induced

. Here i had an issue with the expression of Eind , Because we are defining it for a point inside the dielectric i felt the denominator must have a factor of K.

Later i went to the internet and referred my books , i found that everywhere it is written same way. What did i think wrong

. please explain