I For parts (b) - (d), assume the wire carries a current directed out of the pag

Question

I For parts (b) - (d), assume the wire carries a current directed out of the page.
(b) What is the direction of the magnetic field generated by the wire at point 1?
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The figure below shows a current carrying wire located at the origin; the wire carries a current of I = 4.9 A. Points 1, 2, and 3, are all on a circle with radius 13.0 cm which is centered on the origin. (All directions below should be an angle measured counterclockwise from the +x axis to the direction the field points.) What is the magnitude of the magnetic field generated by the wire at any point on the circle? I For parts (b) - (d), assume the wire carries a current directed out of the page. What is the direction of the magnetic field generated by the wire at point 1?

Explanation / Answer

a) B=mu not*I/(2*phi*r)=2*10^-7*4.9/0.13=7.5384*10^-6

b) Along tangent to the circle in counter clockwise direction( 90 degrees to the wire).

c) Along tangent to the circle in counter clockwise direction (90 degrees to the wire).

d) Along tangent to the circle in counter clockwise direction (90 degrees to the wire).

II)

when the wire carries a current directed into the page.

e) Along tangent to the circle in clockwise direction( 90 degrees to the wire).

f) Along tangent to the circle in clockwise direction (90 degrees to the wire).

g) Along tangent to the circle in clockwise direction (90 degrees to the wire).

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