- #1
Firefox123
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Electromagnetics problem...
Hello. I am an electrical engineer who is trying to improve my skills in several areas, one of which is electromagnetics.
I am using the book by David Cheng "Fundamentals in Engineering Electromagnetics" and doing some problems in that book.
I am having trouble with a problem in chapter 2 of that book (its problem 2-23 or 2-25 I believe)...anyway here is the problem...
***Note on my notation: I use bold to signify a vector, since I can't use an arrow on top of it. I also use the symbol "*" for the vector dot product***
Given a vector A(z) z and a hemispherical surface centered at the origin with radius 3 with the flat bottom in the xy plane find...
The surface integral of A(z) * ds.
I have tried it several ways and can't seem to get the answer...Maybe I am writing out the differential surface element incorrectly or my spherical expression for A(z) is wrong.
If someone could give me a worked out solution I would greatly appreciate it. I normally would not go on the internet for a solution, but I am an Army Reservist currently serving in Kuwait...so my resources for such things are somewhat limited.
Thanks in advance for any help.
Russ
Hello. I am an electrical engineer who is trying to improve my skills in several areas, one of which is electromagnetics.
I am using the book by David Cheng "Fundamentals in Engineering Electromagnetics" and doing some problems in that book.
I am having trouble with a problem in chapter 2 of that book (its problem 2-23 or 2-25 I believe)...anyway here is the problem...
***Note on my notation: I use bold to signify a vector, since I can't use an arrow on top of it. I also use the symbol "*" for the vector dot product***
Given a vector A(z) z and a hemispherical surface centered at the origin with radius 3 with the flat bottom in the xy plane find...
The surface integral of A(z) * ds.
I have tried it several ways and can't seem to get the answer...Maybe I am writing out the differential surface element incorrectly or my spherical expression for A(z) is wrong.
If someone could give me a worked out solution I would greatly appreciate it. I normally would not go on the internet for a solution, but I am an Army Reservist currently serving in Kuwait...so my resources for such things are somewhat limited.
Thanks in advance for any help.
Russ