Question

Two parallel plates, each having area A = 3490cm2 are connected to the terminals of a battery of voltage Vb = 6 V as shown. The plates are separated by a distance d = 0.36cm. You may assume (contrary to the drawing) that the separation between the plates is small compared with either linear dimension of the plate. A dielectric having dielectric constant κ = 3.6 is now inserted in between the plates of the capacitor as shown. The dielectric has area A = 3490 cm2 and thickness equal to half of the separation (= 0.18 cm) . What is the charge on the top plate of this capacitor?

Answer 1

[url= http://postimage.org/image/mkiih6lat/ ][img] http://s18.postimage.org/mkiih6lat/h8_plate_C.jpg [/img][/url]

Answer 2

C = Ea/(d/2) + kEa/(d/2)
Q = CV
= C X 6

Answer 3

E = epsilon naught

Answer 4

a = area of plate, d = 0.36 cm

Answer 5

k = dielectric constant

Answer 6

got it??

Answer 7

??

Answer 8

Sorry I was looking searchin google and didn't see you were answering.

Answer 9

So you basically treat it like a series?

Answer 10

in order to find the capacitance. Versus where you could have a dielectric filling like this..[url= http://postimage.org/image/pguu5cyl3/ ][img] http://s7.postimage.org/pguu5cyl3/showme.jpg [/img][/url]

Answer 11

and you treat that as parallel

Answer 12

yes..when the area of the plate is covered fully and the distance is covered partially its series

Answer 13

sweet! thanks

Answer 14

because

Answer 15

the current has only one path?

Answer 16

see..there is a graduating potential difference between the plates...if you cover the distance btween em partially u are effectively distributing the voltage btween the two regions..voltag is distributed in series isnt it?

Answer 17

understand?

Answer 18

ahh yes ..

Answer 19

and on the other hand.if you cover the area partially...the distace and hence the potential diff across both remains same..so you can see its parallel

Answer 20

Do you know of any links to pages that talks about this....just so I have it to go back too? My textbook explains it oddly and the way you explained made much more sense.

Answer 21

see....the book i have focuses on how to solve questions and tips and tricks..and i ad a godly teacher...you wont find the book...bt look fr ebooks by serway and jewett, or resnick and halliday if you can

Answer 22

resnick and halliday? I swear i have seen a physics by them. The teachers are my uni. are aggressive and not interactive with their teaching.

Answer 23

*prof

Answer 24

*at

Answer 25

wait..i might have found the book

Answer 26

dont worry..if you learn yourself its always better...discover the nuances yourself

Answer 27

thanks, trying to remain positive

Answer 28

dont worry...what year?

Answer 29

junior because I transferred in from a small school that didn't have much science. So I am really just flustered trying to shape up my mathematical thinking

Answer 30

also behind on my degree progress because of the transfer.

Answer 31

u know the hard path is always glorious dont you?

Answer 32

I am chem major but I want to make sure I have a good background in physics and math firs.t

Answer 33

haha yeah! One thing is for sure is that it truly is hard.

Answer 34

where do you study?

Answer 35

University of Vermont

Answer 36

in the states

Answer 37

aah...nice..

Answer 38

dnt worry...leave me a message whn you need help

Answer 39

thanks!. did you find what the name of that book is?

Answer 40

wait you can message people?

Answer 41

i know the name...i cant find the ebook

Answer 42

fundamentals of physics by resnick halliday and walker shld help you

Answer 43

okay.

Answer 44

if youre my fan..you can leave a fan testimonial

Answer 45

which acts like a message

Answer 46

ohh that thing. gotcha. H

Answer 47

are you doing circuit stuff right now?