NEET Physics Magnetic Properties of Materials MCQ Question
A solenoid with a magnetic field B0 is filled with a material that has a magnetisation M. If the permeability of vacuum is μ0, which expression correctly represents the new magnetic field B inside the solenoid?
B = B0 + μ0 * M
B = B0 - μ0 * M
B = B0 + M / μ0
B = B0 * μ0 + M
Correct Answer
Detailed Explanation
According to the NCERT context, the net magnetic field B inside a solenoid filled with a material of magnetisation M is given by the equation B = B0 + Bm, where Bm = μ0 * M.
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