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For a current of 5 A flowing through a circular loop of radius 0.1 m, what is the expression for magnetic field strength at a point 0.2 m from the center along the axis?

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Single Answer MCQ

Q-00085434

B = (μ₀ * 5 * 0.1²) / (2(0.1² + 0.2²)^(3/2))

B = (5 μ₀) / (4π(0.2)²)

B = (5 μ₀) / (4π(0.1)²)

B = (μ₀ * 5 * 0.2) / (2(0.1 + 0.2)²)

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