Published by:
CGP EDU Academic Team
Published on: September 12, 2026
Which of the following relations is not correct?
Text Solution
Verified by ExpertsThe correct answer is:
A
Step 1: Analyze Option A: The relation states B = \mu_0 (H + I), where I does not have a standard definition in standard magnetism and is not accounted for.
Step 2: Analyze Option B: This relation is correct as it represents the magnetic flux density B in terms of the magnetic field H and the magnetic susceptibility \chi_m.
Step 3: Analyze Option C: This relation is correct as it describes the relation between the permeability \mu_0 of free space and the permeability \mu of a material, which is indeed given by \mu = \mu_0 (1 + \chi_m).
Step 4: Analyze Option D: This relation is also correct as it describes the relative permeability \mu_r in terms of the magnetic susceptibility \chi_m, given by \mu_r = 1 + \chi_m.
Since Option A is not a standard relation in magnetism, it is the incorrect one.
Step 2: Analyze Option B: This relation is correct as it represents the magnetic flux density B in terms of the magnetic field H and the magnetic susceptibility \chi_m.
Step 3: Analyze Option C: This relation is correct as it describes the relation between the permeability \mu_0 of free space and the permeability \mu of a material, which is indeed given by \mu = \mu_0 (1 + \chi_m).
Step 4: Analyze Option D: This relation is also correct as it describes the relative permeability \mu_r in terms of the magnetic susceptibility \chi_m, given by \mu_r = 1 + \chi_m.
Since Option A is not a standard relation in magnetism, it is the incorrect one.
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