A solid iron cylinder is placed in a region containing a uniform magnetic field such that the cylinder axis is parallel to the magnetic field direction. The magnetic field lines inside the cylinder will
- A. bend closer to the cylinder axis
- B. bend farther away from the axis
- C. remain uniform as before
- D. cease to exist inside the cylinder
Answer: A. bend closer to the cylinder axis
Explanation: Because ferromagnetic iron has high relative permeability (µr >> 1), magnetic flux lines concentrate and bend closer to the cylinder axis.