Physics-Magnetic Properties of Materials

NEET Physics Magnetic Properties of Materials MCQ Question

Type: MCQ-diagram based-Hard-Class 12

Consider a diagram showing a solenoid with a ferromagnetic rod placed inside it. The current is flowing through the solenoid. The magnetic field inside the solenoid is affected by the magnetisation of the rod. Which equation correctly represents the net magnetic field inside the solenoid?

Question diagram
A

B = B_0 + μ_0 M

B

B = B_0 - μ_0 M

C

B = μ_0 nI + M

D

B = μ_0 nI - M

Correct Answer

Option A

Detailed Explanation

The net magnetic field inside the solenoid is given by B = B_0 + B_m, where B_m = μ_0 M. This is derived from the relationship B = B_0 + μ_0 M as per the NCERT context.

Found an issue with this question?