https://www.khanacademy.org/science/grade-6-science-snc-aligned/x19bc096754f0b9af:magnetism/x19bc096754f0b9af:magnetic-force-and-magnetic-field/v/intro-to-magnetic-fields-why-fields-ur 2025-08-07T23:35:51.501752344Z Intro to magnetic fields (Why fields?) Created by Khan Acedemy video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Intro to magnetic fields (Why fields?) Created by Khan Acedemy https://cdn.kastatic.org/ka-youtube-converted/OtDU724evzs.mp4/OtDU724evzs.mp4 429 Magnetic field https://www.khanacademy.org/science/grade-6-science-snc-aligned/x19bc096754f0b9af:magnetism/x19bc096754f0b9af:magnetic-force-and-magnetic-field/v/magnetic-field-lines-ur 2025-08-07T23:35:51.501752344Z Magnetic field lines Created by Khan Academy video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Magnetic field lines Created by Khan Academy https://cdn.kastatic.org/ka-youtube-converted/QPLyd1a-VbY.mp4/QPLyd1a-VbY.mp4 357 Magnetic field https://www.khanacademy.org/science/grade-7-science-cambridge-curriculum/x754b285620daf71e:magnetism/x754b285620daf71e:magnetic-field/v/magnetism-and-magnetic-fields 2024-03-15T18:17:14.784059005Z Magnetism and magnetic fields Magnetic fields are present around permanent magnets and electric currents. Magnetic fields create a magnetic force on other magnetic objects which enter the field. The magnetic force is strongest where field lines are densest. All magnets have a north and south pole. By convention, magnetic field lines emerge from the magnetic north pole and return to the south pole. Sal Khan video https://cdn.kastatic.org/ka_thumbnails_cache/935ce808-b198-437c-929f-dff4a4f2e61c_1280_720_base.png Magnetism and magnetic fields Magnetic fields are present around permanent magnets and electric currents. Magnetic fields create a magnetic force on other magnetic objects which enter the field. The magnetic force is strongest where field lines are densest. All magnets have a north and south pole. By convention, magnetic field lines emerge from the magnetic north pole and return to the south pole. https://cdn.kastatic.org/ka-youtube-converted/HFhTV4vzqOI.mp4/HFhTV4vzqOI.mp4 493 Magnetic field https://www.khanacademy.org/science/grade-6-science-snc-aligned/x19bc096754f0b9af:magnetism/x19bc096754f0b9af:magnetic-force-and-magnetic-field/v/tracing-a-magnetic-field-ur 2025-08-07T23:35:51.501752344Z Tracing a magnetic field Created by Khan Academy video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Tracing a magnetic field Created by Khan Academy https://cdn.kastatic.org/ka-youtube-converted/UDR5yErrZhM.mp4/UDR5yErrZhM.mp4 29 Magnetic field https://www.khanacademy.org/science/grade-6-science-snc-aligned/x19bc096754f0b9af:magnetism/x19bc096754f0b9af:magnetic-force-and-magnetic-field/v/magnetic-strength-is-strongest-at-the-ends-ur 2025-08-07T23:35:51.501752344Z Magnetic strength is strongest at the ends Created By Khan Academy video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Magnetic strength is strongest at the ends Created By Khan Academy https://cdn.kastatic.org/ka-youtube-converted/Ge0QHYPxy4Q.mp4/Ge0QHYPxy4Q.mp4 35 Magnetic field https://www.khanacademy.org/science/grade-6-science-snc-aligned/x19bc096754f0b9af:magnetism/x19bc096754f0b9af:magnetic-force-and-magnetic-field/a/what-are-magnetic-fields 2021-05-17T03:42:37Z What are magnetic fields? Learn what magnetic fields are and how to calculate them. article https://www.khanacademy.org/science/ap-physics-2/x0e2f5a2c:magnetism-and-electromagnetism/x0e2f5a2c:magnetic-fields/e/magnetic-field-lines--properties 2026-04-07T23:55:07.30621384Z Magnetic field lines: direction Let's test our understanding of the properties of magnetic field lines. Satrajit exercise