Problem 2 Show that in a current-free volume of space, a static magnetic field can never have a local maximum by considering V(B.B) da, where S is the surface of a small volume V containing a point P in space.

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Problem 2
Show that in a current-free volume of space, a static magnetic field can never have a local maximum by
considering
V(B· B) · da,
where S is the surface of a small volume V containing a point P in space.
Transcribed Image Text:Problem 2 Show that in a current-free volume of space, a static magnetic field can never have a local maximum by considering V(B· B) · da, where S is the surface of a small volume V containing a point P in space.
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