NEET Physics Ampere's Law MCQ Question
Consider a circular loop with radius 'r' and uniform current distribution. According to Ampere's Law, what is the expression for the magnetic field 'B' outside the loop at a distance greater than the loop's radius?
B = μ₀I / (2πr)
B = μ₀I / (4πr)
B = μ₀I / (2πr²)
B = μ₀I / (4πr²)
Correct Answer
Detailed Explanation
According to Ampere's Law, for a point outside a circular loop, the magnetic field B is given by B = μ₀I / (2πr) where r is the distance from the center of the loop.
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