I posted this in maths, but think it might be more suitable here.
Please might anyone be able to advise me how to solve this problem in regard to the following cylinder? Dimensions L = 10-2 m, d = 10-3 m and D = 2 × 10-3 m.
I've been given the formula
Cm = (Capacitance/unit area ) x (surface area)
And have been asked to answer this question:
Calculate the capacitance of the outer curved surface if the material has: Capacitance/surface area = 1.2 x 10-5 Fm2. [Hint:]
I'm not sure how to go about this. Should I multiply 1.2 x 10-5 Fm2 by 2 pi r h (the surface area of the outer curved surface) to answer the question?
1 E -2 translates to 1 x 10-2 10 E -2 translates as 10 x 10-2
This is why you get 10-9 instead of 10-10
It's a common mistake in calculator usage.
Hi Stonebridge
Sorry to bring this up again. I had a look at the last calculator photo, and it seems that I have entered 10E-2 rather than 1E-2. Is it definitely the final term that is entered incorrectly?
Sorry to bring this up again. I had a look at the last calculator photo, and it seems that I have entered 10E-2 rather than 1E-2. Is it definitely the final term that is entered incorrectly?
Thank you
Yes. The last term is entered incorrectly, as I said in my previous post.