What is the magnitude of the magnetic field at point P if a = R and b = 2R?

Name: What is the magnitude of the magnetic field at point P if a = R and b = 2R?
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Question

Quizplus · Accepted Answer

Using the formula for the magnetic field on the axis of a circular current loop, B = (μ₀Ia²)/(2(a²+b²)^(3/2)), we can substitute in the given values and simplify to get B = (μ₀I)/(4√5R²). Since a = R and b = 2R, we can simplify the denominator to 5R², giving B = (μ₀I)/(4R√5). Therefore, the correct choice is option B.

What Is the Magnitude of the Magnetic Field at Point