The drawing shows two perpendicular, long, straight wires, both of which lie in the plane of the paper. The current in each of the wires is I = 5.6 A. Find the magnitudes of the net magnetic fields at point A.

Engineering

Physics

Magnetization and Magnetic Intensity

Question

32 × 10^–7 T

7 × 10^–7 T

28 × 10^–7 T

14 × 10^–7 T

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$B = \frac{μ_{0} I}{2 π} (\frac{1}{r_{1}} - \frac{1}{r_{2}})$

$2 \times 10^{- 7} \times 5.6 \times \frac{1}{0.4}$

= 28 × 10^–7 T

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