NEET2023Physics-Magnetism
NEET 2023 Physics Magnetic Field MCQ Question
Type: MCQ-conceptual-Medium-Class 12
A very long conducting wire is bent in a semi-circular shape from A to B as shown in figure. The magnetic field at point P for steady current configuration is given by:
A
μ₀i4R pointed away from the page
B
μ₀i4R[1 − 2π] pointed away from page
C
μ₀i4R[1 − 2π] pointed into the page
D
μ₀i4R pointed into the page
Correct Answer
Option B
Detailed Explanation
Using Biot-Savart law, calculate the magnetic field due to a semi-circular wire. The field is μ0i/4R [1 - 2/π] directed away from the page.
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