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Ampere's Law Problem

  • Thread starter Yosty22
  • Start date
  • #1
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4

Homework Statement



Ampere's Law uses the current enclosed in a:
A) Loop
B) Surface
C) Volume

Homework Equations





The Attempt at a Solution



I think the answer is C because I often see current in 3-dimensions, that is, it can be into or out of the page as well as up/down and left/right. I don't know for sure, but is my thinking correct?
 

Answers and Replies

  • #2
tiny-tim
Science Advisor
Homework Helper
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Hi Yosty22! :smile:
I think the answer is C because I often see current in 3-dimensions, that is, it can be into or out of the page as well as up/down and left/right. I don't know for sure, but is my thinking correct?
Hint i]: consider a sphere … is there any difference between the current passing through the volume of the sphere and the current passing through the surface of the sphere?

ii] Consider two different surfaces whose edges are the same loop …

what does Ampere's law say about the two currents through those two surfaces? :wink:

(and anyway, what does Ampere's law say about the magmetic field?)
 

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