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NEET PhysicsClass 12Magnetisation and magnetic intensityMediumSingle correct

A long solenoid with 500 turns per metre carries a current of 1.5 A. Its core is filled with a ferromagnetic material of relative permeability 800. What are the magnetic intensity H and the magnetic field B inside the core? (μ₀ = 4π × 10⁻⁷ T m A⁻¹)

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