{"correct_answer":null,"diagram_svg":null,"difficulty":1,"mark_scheme":"C) Magnetic field","max_marks":1,"ordering_type":"weakness","question_id":"db_1662","question_text":"What does a compass needle line up with? A) Gravity B) Earth's electric field C) Magnetic field D) Current","question_type":"mcq","source":"database","subject":"Physics","topic":"Magnetism & Electromagnetism"}