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Serie- och parallellkoppling (Fysik) - Studi.se https://m.youtube.com/watch?v=Db-XN4MJgYM

fysik - YouTube https://m.youtube.com/results?search_query=fysik&lact=13&oq=fysik&gs_l=youtube-reduced.3..0i131k1l2j0l8.4892.7669.0.9038.5.3.0.2.2.0.166.448.0j3.3.0....0...1ac.1.64.youtube-reduced..0.5.482...0i3k1.0.KDYqA3Xil1c

kemi - YouTube https://m.youtube.com/results?search_query=kemi

fysik - YouTube https://m.youtube.com/results?search_query=fysik

matematik - YouTube https://m.youtube.com/results?search_query=matematik

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