Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
MHT CET Medical202622 April 2026Evening ShiftPhysicsMagnetic Properties of MatterActual

The magnetic induction produced at the centre of the air-core solenoid is B₀ . If the air-core is replaced by an iron-core of susceptibility , the magnetic induction is B₁ . The ratio of B₁ B₀ is

Options

  1. A1 -
  2. B1 +
  3. C1

Correct answer

C. 1

Step-by-step solution

The magnetic induction at the centre of an air-core solenoid is given by B₀ = ₀ n I When the air-core is replaced by an iron-core of susceptibility , the magnetic induction becomes B₁ = n I The permeability of the core is related to the relative permeability _r and the permeability of free space ₀ by = ₀ _r The relative permeability is related to the magnetic susceptibility by _r = 1 + Substituting this into the expression for B₁ , we get B₁ = ₀ (1 + ) n I The ratio of the magnetic inductions is B₁ B₀ = ₀ (1 + ) n

Practice Magnetic Properties of Matter on Quantrex Academy →

More from Magnetic Properties of Matter

A magnetizing field of 360 A/m produces a magnetic flux density B = 0.6 T in a ferromagnetic material. The permeability of the material in T-m/A is 2026There are four lightweight rod samples P, Q, R and S separately suspended by thread. A bar magnet is slowly brought near to each sample and the following observations are noted (a) 2026A paramagnetic sample shows a net magnetization of 8 A/m when placed in an external magnetic field of 0.6 T at a temperature of 4 K. When the same sample is placed in an external m 2026A magnetizing field of 10^3 A/m produces a magnetic flux density 4 T in an iron rod. The relative permeability of the rod will be (permeability of free space ₀ = 4 10⁻⁷ SI units) 2026In an experiment, the interior of a first current-carrying toroid with 1000 turns per unit length is filled with aluminum (susceptibility 2.4 10⁻⁵ ). A second, identical toroid wit 2026Magnetic susceptibility ( ) is related to magnetic relative permeability ( _r ) by the relation 2026A magnetic material has a relative permeability ( _r) of 6001 . If it is placed in a magnetizing field (magnetic intensity) of H = 2000 A/m , The total magnetic induction (B) insid 2026Which of the following statements is INCORRECT for diamagnetic materials? a. Relative permeability is less than one. b. Magnetic susceptibility is negative and low. c. Magnetic sus 2026 Full Magnetic Properties of Matter list All MHT CET Medical PYQs