PHYS208 Fundamentals of Physics II

Hint for Ch. 30, 51P

a) Suppose the field is not parallel to the sheet, as shown:

[current sheet; B arbitrary]

Reverse the direction of the current. What happens to the field?

Now rotate the sheet by 180 degrees about a line perpendicular to the sheet. What happens to the field? Can you see a contradiction?

b) Use a rectangular loop oriented similar to that used for solution of the solenoid configuration.

Last updated Oct. 30, 1997.
Copyright George Watson, Univ. of Delaware, 1997.