Two long horizontal straight parallel wires are 28.28 cm apartand each carries a

Question

Two long horizontal straight parallel wires are 28.28 cm apartand each carries a current of 2.2 A inthe same direction, namely, due south. What is the B-fieldat a point that is a perpendicular distance of 23 cm from both wires? Answer wanted in microTesla B= (u0*I)/(2Pi*r) u0= 1.26*10^-6 The two wires go in the same directions so:2[1.26E-6*2.2/(2Pi*0.23)]= 3.84E-6*10^6= 3.84uT This is incorrect. Where am I going wrong? Two long horizontal straight parallel wires are 28.28 cm apartand each carries a current of 2.2 A inthe same direction, namely, due south. What is the B-fieldat a point that is a perpendicular distance of 23 cm from both wires? Answer wanted in microTesla B= (u0*I)/(2Pi*r) u0= 1.26*10^-6 The two wires go in the same directions so:2[1.26E-6*2.2/(2Pi*0.23)]= 3.84E-6*10^6= 3.84uT This is incorrect. Where am I going wrong?

Explanation / Answer

Look at your constant 0.   I believe itshould be 4x10-7Tm/A. Hope this helps.

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