A circular loop with radius R and current I lies in the x-y plane centered on the
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A circular loop with radius R and current I lies in the x-y plane centered on the z-axis. The magnetic field on the symmetry axis is
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R² B(z) = μ₁¹ (R² + z²)³/2². z In cylindrical coordinates, B,(p, z) = f(z)p when p << R. Use only the Maxwell equations to find f(z) and then B₂ (p, z) when p << R.
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