అయస్కాంత దిక్సూచి సూది ఎల్లప్పుడూ ఏ దిశలో సూచిస్తుంది?

A freely suspended magnetic compass needle lines up with the Earth's magnetic field: its north pole points towards the Earth's geographic north (the magnetic north). Its other end points south, so the needle lies along the north–south line.