is my solution ok?

[transgalactic]

i have this question and solution

https://i27.tinypic.com/4jxj7o.jpg

i tried to solve it like this example
https://i26.tinypic.com/xghb4g.jpg

i tried to imagine it in this way:
https://i28.tinypic.com/24pwdvl.jpg
[latex]C_1=\frac{2\epsilon_0}{d-a}\\[/latex]
[latex]C_2=\frac{k\epsilon_0}{d}\\[/latex]
[latex]C_3=\frac{2\epsilon_0}{d-a}\\[/latex]
[latex]\frac{1}{C}=\frac{1}{C_1}+\frac{1}{C_2}+\frac{1}{C_3}[/latex]
is it ok?

 

[skyhawk]

Your answer is different from the sample solution, so why would you believe that it is correct?

There is no electric field in the conductor. The effect of the conductor is to reduce the size of the effective gap between the plates.

 

[transgalactic]

thanks
i understand my error

 

[EN0]

How do you initate LaTeX on this forum? I know in several other forums it's usually [tex][/tex] or [MATH][/MATH], but what is used for Electro-Tech?

Thanks,

Austin

 

[Sceadwian]

I'm not so sure they have a Latex addon for the forum. You'd have to ask Electromaster in the feedback forum. I don't think I've ever seen someone use it at least. Would be a nice addition.

 

[Nigel Goodwin]

As far as I'm aware LaTeX has been implemented for a LONG time - unless it disappeared after an update?.

 

[EN0]

LaTeX is implemented, because transgalactic used it in his first post to show the equations. However, it would be nice to know what denotions he used to initiate it, perhaps he will tell us.

Austin

 

[Sceadwian]

Nigel, food for thought... A 'feature' has not been implemented unless the users that have it available know about it =O

What current people will say to those that develop nanotechnology in the future.. "So that's how you did that!" All the building blocks are here now, but not a lot of people know how to use them..

 

[Hayato]

How do you initate LaTeX on this forum? I know in several other forums it's usually [tex][/tex] or [MATH][/MATH], but what is used for Electro-Tech?

Thanks,

Austin

Try [l a t e x] and [/ l a t e x] without the spaces.

 

[EN0]

Testing...1...2...3...

[latex]\frac{1}{2 \pi f C} = X_c[/latex]

Austin

 

[Pommie]

Did you not read the posts above? You use [latex] [/latex].

Mike.