What are the magnetic field strength and direction at points 1 to 3 in the figur

Question

What are the magnetic field strength and direction at points 1 to 3 in the figure below, in which I = 8 A, d = 2 cm, and D = 4 cm?

** I have seen similar problems but please provide a number answer for questions 1,2, and 3 in T's in order to recieve all points offered.

point 1 ____________ T --Direction--updownrightleftout of pageinto page
point 2 ____________ T --Direction--updownrightleftout of pageinto page point 3 ____________ T --Direction--updownrightleftout of pageinto page What are the magnetic field strength and direction at points 1 to 3 in the figure below, in which I = 8 A, d = 2 cm, and D = 4 cm? ** I have seen similar problems but please provide a number answer for questions 1,2, and 3 in T's in order to recieve all points offered.

Explanation / Answer

B at 1 = k*I/(2*pi*d) - k*I/(2*pi*(D+d)) ; k is constant = 4*pi*10^-7 Tm/A

= 5.3333*10^-05 T, out of the page   ( = B at 3 )

B at 2 = k*I/(2*pi*D/2)+k*I/(2*pi*D/2) = 1.6*10^-4 T ,going into the paper

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