(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Two parallel plates have charges Q and -Q. When the space between the plates is devoid of matter, the electric field is 2.7E5 V/m. When the space is filled with a certain dielectric, the field is reduced to 1.3E5 V/m.

What is the dielectric constant of the dielectric?

I got this answer as 2.07692, which was correct.

If Q = 8 nC, what is the area of the plates?

I tried plugging the numbers into the formulas below, but I'm not getting the right answer...Am I missing a piece of relevant information?

What is the total induced charge on either face of the dielectric?

This will be easier once I figure out the second question.

2. Relevant equations

E=E(not)/kappa

V=Ed

C=Q/V

C=epsilon(not)*kappa*Area/distance

3. The attempt at a solution

I got the first answer, and the second I could not get.

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# Homework Help: Dielectric problem

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