NEET Physics Biot-Savart Law MCQ Question
What is the expression for the magnetic field due to a current element according to the Biot-Savart Law?
B = (μ0/4π) * (I * dl * sinθ) / r^2
B = (μ0/4π) * (I * dl) / r
B = (μ0/4π) * (I * dl * cosθ) / r
B = (μ0/4π) * (I * dl * θ) / r
Correct Answer
Detailed Explanation
The correct expression derived from the Biot-Savart Law is B = (μ0/4π) * (I * dl * sinθ) / r^2, where dl is the current element and r is the distance from the current element to the point where the magnetic field is being calculated.
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