Question

Draw the magnetic field lines of a current carrying solenoid when a rod made of copper iron and aluminum is inserted with the solenoid

Answer 1

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Answer 2

Magnetic field lines of a current carrying solenoid:

• When current passed through the solenoid, it acts as bar magnet.
• One end of the solenoid acts as north pole and another end acts as south pole.
• The magnetic field starts at north pole and ends at south pole.
• The magnetic field lines are always parallel.

Copper:

• Copper is a dimagnetic material.
• The magnetic field produced by the material is repulsive. Thus, the magnetic field lines diverges outward.

Iron:

• Iron is a paramagnetic material.
• The magnetic field is strengthened around the material. Thus, the magnetic field of lines converges lightly.

Aluminum:

• Aluminum is a ferromagnetic material.
• The magnetic field is far strong around the material. Thus, the magnetic field of lines converges heavily.