Correct option is B
The correct answer is (B) Magnet
Explanation:
• A compass needle is a small, lightweight magnet balanced on a nearly frictionless pivot point.
• It aligns itself with the Earth's magnetic field, with its north-seeking pole pointing toward the Earth's magnetic North Pole.
Information Booster:
• The end of the needle that points north is called the 'North Pole' of the magnet.
• Like poles repel, and opposite poles attract; hence the needle reacts to external magnetic fields.
Additional Knowledge:
• Conductor (Option A): A material that allows electricity to flow through it easily.
• Insulator (Option D): A material that resists the flow of electricity.