Two parallel wires, each carrying a current of 2.2 A in the same direction, are

Question

Two parallel wires, each carrying a current of 2.2 A in the same direction, are shown in the figure.



http://session.masteringphysics.com/problemAsset/1126307/2/Walker4e.ch22.Pr088.jpg



Find the magnitude of the net magnetic field at points A.
B(A)= _____ uT
Find the direction of the net magnetic field at points A.
a) into the page
b) out of the page
c) magnitude is zero

Find the magnitude of the net magnetic field at points C.
B(A)= _______ uT
Find the direction of the net magnetic field at points C.
a) into the page
b) out of the page
c) magnitude is zero

Explanation / Answer

B=(µ*2.2)/(2*pi*.075)= .000059 B=(µ*2.2)/(2*pi*.225)= .000002 therefore B(a)=0.000061 in both cases 1)b) out of the page 2)a) into the page

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