Physics-(general)
NEET Physics (general) MCQ Question
Type: MCQ-numerical-Easy-Class 12
If a material is placed in an external magnetic field B₀ and its magnetic susceptibility is χ, which of the following expressions correctly represents the magnetic field B inside the material?
A
B = μ₀(1 + χ)H
B
B = μ₀χH
C
B = μ₀H
D
B = μ₀(χ - H)
Correct Answer
Option A
Detailed Explanation
According to the NCERT context, for a linear material, the magnetisation M is given by M = χH, and the magnetic field B is given by B = μ₀(H + M). Substituting M = χH, we get B = μ₀(H + χH) = μ₀(1 + χ)H.
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