From Longman Dictionary of Contemporary Englishmagneticmag‧net‧ic /mæɡˈnetɪk/  ●●○ adjective  1 HPEconcerning or produced by magnetism magnetic forces2 DThaving the power of a magnet or behaving like a magnet a magnetic bulletin board3  → magnetic personality/charm etc —magnetically /-kli/ adverb
                                                    
                                                Examples from the Corpus
magnetic• The firm designs and sells magnetic and optical sensors for use on factory production lines.• a magnetic bulletin board• Turns on to headings will be made at the standard rate, but using the stop-watch, not magnetic compass.• Two people standing at distant points on the globe would have completely different ideas about where the magnetic north pole lay.• A compass needle points to the magnetic north pole. 
