Question: Figure shows a cross section of an infinite conducting sheet carrying a current per unit x length of ; the current emerges perpendicularly out of

Figure shows a cross section of an infinite conducting sheet carrying a current per unit x length of λ; the current emerges perpendicularly out of the page.?

(a) Use the Biot-Savart law and symmetry to show that for all points P above the sheet and all points P' below it, the magnetic field B is parallel to the sheet and directed as shown.?

(b) Use Ampere's law to prove that B = l/2μ0λ at all points P and P??.

Lp B P'. B -X

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