What is the magnetic field at the center of the loop in the figure? (Figure 1)

What is the magnetic field at the center of the loop in the figure? (Figure 1)

Answer

The field will be sum of the fields due to a current carrying wire and a circular loop,

B=\frac{\mu_{0} I}{2 \pi a}+\frac{\mu_{0} I}{2 a}=\frac{4 \pi \times 10^{-7} \times 5}{2 \times 0.01}\left(\frac{1}{\pi}+1\right)=4.14 \times 10^{-4} T

Raymond Puzio has a PhD in Physics from Yale University. I have been creating PlanetPhysics with Aaron Krowne and Ben Loftin since 2005.

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