https://www.khanacademy.org/science/ap-physics-2/x0e2f5a2c:magnetism-and-electromagnetism/x0e2f5a2c:magnetic-fields/v/magnetic-field-lines-their-properties 2024-06-24T15:17:43.406242903Z Magnetic field lines Let's explore what magnetic field lines are, why we draw them, and what their properties are. Here is the link to the simulation https://www.khanacademy.org/science/physics/discoveries/magnetic-fields/pi/tracing-a-magnetic-field Mahesh Shenoy video https://cdn.kastatic.org/googleusercontent/10AV2lREoHTNiWmTp1a9iwGl53MlYHEm5gqKTAxqmYkvTjyh1F83sgGRTOF_MBAs3mPTEkPIAF4XcwMSVgdLP9o Magnetic field lines Let's explore what magnetic field lines are, why we draw them, and what their properties are. Here is the link to the simulation https://www.khanacademy.org/science/physics/discoveries/magnetic-fields/pi/tracing-a-magnetic-field https://cdn.kastatic.org/ka-youtube-converted/GgRCkduKCLE.mp4/GgRCkduKCLE.mp4 656 Electromagnetism https://www.khanacademy.org/science/ap-physics-2/x0e2f5a2c:magnetism-and-electromagnetism/x0e2f5a2c:magnetism-and-current-carrying-wires/v/right-hand-thumb-rule-solved-numerical 2026-04-06T13:32:15.647796949Z Right hand thumb rule Learn how to use the right-hand thumb rule to find the direction of the magnetic field around a current-carrying wire. Mahesh Shenoy video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Right hand thumb rule Learn how to use the right-hand thumb rule to find the direction of the magnetic field around a current-carrying wire. https://cdn.kastatic.org/ka-youtube-converted/NLieiomI4sA.mp4/NLieiomI4sA.mp4 652 Electromagnetism https://www.khanacademy.org/science/highschool-physics/x6679aa2c65c01e53:electromagnetics/x6679aa2c65c01e53:magnetic-field-due-to-current/v/magnetic-field-due-to-current-carrying-loop 2024-06-20T16:50:27.706991954Z Magnetic field due to current-carrying loop Explore the magnetic field generated due to a current-carrying loop. Mahesh Shenoy video https://cdn.kastatic.org/googleusercontent/8Fm6HO0lOGkZ-r1uPmW9RXLxXfxXF3hQHKkn7GC_iNH5TMo-iYooCJ_ZJQkd8yMeaO3ltFAXF0cMtU9NhJ3tYXzX Magnetic field due to current-carrying loop Explore the magnetic field generated due to a current-carrying loop. https://cdn.kastatic.org/ka-youtube-converted/fav3olr-ra0.mp4/fav3olr-ra0.mp4 547 Electromagnetism https://www.khanacademy.org/science/highschool-physics/x6679aa2c65c01e53:electromagnetics/x6679aa2c65c01e53:magnetic-field-due-to-current/v/magnetic-fields-through-solenoids 2024-06-20T16:50:27.706991954Z Magnetic field due to a solenoid Learn what solenoids are and why they're important. We will see that when we pass current through a solenoid, it produces a magnetic field similar to a bar magnet. Mahesh Shenoy video https://cdn.kastatic.org/googleusercontent/laRdyIPv62ATKx1ImbjfsOdcTb1kcaVWCON3OltEFNaAb_2y9ke-SpwHQ0y0__KbVOBhDWgbLxZrpItxr7ybkWJ_ Magnetic field due to a solenoid Learn what solenoids are and why they're important. We will see that when we pass current through a solenoid, it produces a magnetic field similar to a bar magnet. https://cdn.kastatic.org/ka-youtube-converted/2XRtH46dsCI.mp4/2XRtH46dsCI.mp4 494 Electromagnetism https://www.khanacademy.org/science/karnataka-bridge-course-class-12th-physics/x314b60cd774aae75:magnetic-effects-of-current/x314b60cd774aae75:magnetism-ii/v/force-on-a-current-carrying-conductor-in-a-magnetic-field 2023-08-18T12:14:27.329699533Z Force on a current-carrying conductor in a magnetic field Let's explore the magnetic force on a current carrying conductor. We will discuss how the strength of the current and the field effects the magnitude and the direction of the force. Mahesh Shenoy video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Force on a current-carrying conductor in a magnetic field Let's explore the magnetic force on a current carrying conductor. We will discuss how the strength of the current and the field effects the magnitude and the direction of the force. https://cdn.kastatic.org/ka-youtube-converted/ckllSgcdS7g.mp4/ckllSgcdS7g.mp4 168 Electromagnetism https://www.khanacademy.org/science/in-in-class10th-physics/in-in-magnetic-effects-of-electric-current/force-on-current-carrying-wire-in-magnetic-field/v/flemings-left-hand-rule 2020-09-10T02:28:43Z Fleming's left hand rule Let's explore how to use our left hand to remember the direction of magnetic forces on current carrying wires. Mahesh Shenoy video https://cdn.kastatic.org/googleusercontent/O_0vofUEmLdq3IT2DcR5ZG_jU1GCUEVrPZ2q194BAf5su5QLCNafbDWN7wl4FoAmLSG5dYtlUbqT8OKVYSfInrCW Fleming's left hand rule Let's explore how to use our left hand to remember the direction of magnetic forces on current carrying wires. https://cdn.kastatic.org/ka-youtube-converted/5-jEjjt8KUw.mp4/5-jEjjt8KUw.mp4 627 Electromagnetism https://www.khanacademy.org/science/highschool-physics/x6679aa2c65c01e53:electromagnetics/x6679aa2c65c01e53:electric-motors/v/electric-motor 2024-06-20T16:50:27.706991954Z Electric motors Let's explore the working of an electric motor, which converts electricity into motion. Mahesh Shenoy video https://cdn.kastatic.org/googleusercontent/OdtIS9npJB9sG4s8RPvQfiGmlqaSQ2AFxAOTRcAeHSbUjys767eQTY1qMSqL9dcOe51EpuWpzVNgLZghYT6a75rawg Electric motors Let's explore the working of an electric motor, which converts electricity into motion. https://cdn.kastatic.org/ka-youtube-converted/43XAuU-515g.mp4/43XAuU-515g.mp4 899 Electromagnetism https://www.khanacademy.org/science/ap-physics-2/x0e2f5a2c:magnetism-and-electromagnetism/x0e2f5a2c:electromagnetic-induction/v/electromagnetic-induction-faradays-experiments 2024-06-20T16:50:27.706991954Z Electromagnetic induction Is it possible to produce electric current without using batteries? Let's find out. Mahesh Shenoy video https://cdn.kastatic.org/googleusercontent/NqqiT1bEBr3E8VCAILP66QR0fzg5EYVgfUmCVBGaPCmK2xKnTVYJinZK0IdUq0LpVKrW03xP-b2t9KyqcVpY8Qs Electromagnetic induction Is it possible to produce electric current without using batteries? Let's find out. https://cdn.kastatic.org/ka-youtube-converted/yU--8Zk57-Y.mp4/yU--8Zk57-Y.mp4 612 Electromagnetism https://www.khanacademy.org/science/highschool-physics/x6679aa2c65c01e53:electromagnetics/x6679aa2c65c01e53:electric-generators/v/right-hand-generator-rule 2024-06-20T16:50:27.706991954Z Right hand generator rule Learn how to use your right hand to remember the direction of the induced current when a wire is moved in a magnetic field. Mahesh Shenoy video https://cdn.kastatic.org/googleusercontent/74-Cm2dMnYL-itbzrgOkbmYGXujZtNWrfWNNLfS2cYWzw1WOz2NACFHRtlbXxhllBBgTf6ylMZccNuDHiwV0-Ed3 Right hand generator rule Learn how to use your right hand to remember the direction of the induced current when a wire is moved in a magnetic field. https://cdn.kastatic.org/ka-youtube-converted/OJ9cWa_2bCo.mp4/OJ9cWa_2bCo.mp4 365 Electromagnetism https://www.khanacademy.org/science/highschool-physics/x6679aa2c65c01e53:electromagnetics/x6679aa2c65c01e53:electric-generators/v/ac-dc-generator 2024-06-20T16:50:27.706991954Z AC and DC generators Learn how AC and DC generators work to produce electricity. Mahesh Shenoy video https://cdn.kastatic.org/googleusercontent/2L5WSt4D_ubt7YILi7fXDp2WlVlyi5RMKRvaEY3jlRY6Uv_VmXy3rl0PgaQYS7oBq0bEL7bDSp76tlsKCQlIzo8Z AC and DC generators Learn how AC and DC generators work to produce electricity. https://cdn.kastatic.org/ka-youtube-converted/Ylgb8FFMgd4.mp4/Ylgb8FFMgd4.mp4 809 Electromagnetism https://www.khanacademy.org/science/telangana-class-10-physical-sciencein/x1ac9c643dc8dffee:in-in-magnetic-effects-of-electric-current/x1ac9c643dc8dffee:electromagnetic-induction/v/alternating-current-direct-current-what-is-frequency 2020-09-09T12:23:21Z Alternating current, direct current & what is frequency? Current that keeps changing is direction is called alternating current, (AC) whereas the one that never changes its direction is called direct current (DC). Power can be transmitted with low heating losses in the form of AC (not DC). The frequency of the AC in India is 50 Hz. This means the current changes it's direction 100 times per second. Mahesh Shenoy video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Alternating current, direct current & what is frequency? Current that keeps changing is direction is called alternating current, (AC) whereas the one that never changes its direction is called direct current (DC). Power can be transmitted with low heating losses in the form of AC (not DC). The frequency of the AC in India is 50 Hz. This means the current changes it's direction 100 times per second. https://cdn.kastatic.org/ka-youtube-converted/fQcPEeoiUwU.mp4/fQcPEeoiUwU.mp4 772 Electromagnetism https://www.khanacademy.org/science/odia-class-10-physical-sciences/x28e877d8a7566183:in-in-magnetic-effects-of-electric-current/x28e877d8a7566183:domestic-circuits/v/live-wire-neutral-ground-earth-wire-domestic-circuits-part-1 2020-09-09T12:23:20Z Live wire, neutral & ground (earth wire) - Domestic circuits (part 1) The live wire of domestic circuits is usually red and is at high voltage. The neutral wire is black and has voltage close to that of the ground. The potential difference between these two wires in India is about 220 V. The earth or ground wire provides safety against faults and current leaks. Earth pin is longer to ensure earth connection happens first while connecting and last while disconnecting any devices. Mahesh Shenoy video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Live wire, neutral & ground (earth wire) - Domestic circuits (part 1) The live wire of domestic circuits is usually red and is at high voltage. The neutral wire is black and has voltage close to that of the ground. The potential difference between these two wires in India is about 220 V. The earth or ground wire provides safety against faults and current leaks. Earth pin is longer to ensure earth connection happens first while connecting and last while disconnecting any devices. https://cdn.kastatic.org/ka-youtube-converted/pJYh4HgovaE.mp4/pJYh4HgovaE.mp4 675 Electromagnetism https://www.khanacademy.org/science/odia-class-10-physical-sciences/x28e877d8a7566183:in-in-magnetic-effects-of-electric-current/x28e877d8a7566183:domestic-circuits/v/domestic-circuit-connection-fuse-domestic-circuit-part-2 2020-09-09T12:23:23Z Domestic circuit connection & fuse - Domestic circuit (Part 2) Let's explore how the domestic circuits are connected (whether in series or parallel). Also, let's learn how the fuse helps protect the domestic circuits from voltage surges. This helps us explore why we have two separate circuits, one for low power devices (with 5A fuse) and one for high power devices (with 15 A fuse). Mahesh Shenoy video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Domestic circuit connection & fuse - Domestic circuit (Part 2) Let's explore how the domestic circuits are connected (whether in series or parallel). Also, let's learn how the fuse helps protect the domestic circuits from voltage surges. This helps us explore why we have two separate circuits, one for low power devices (with 5A fuse) and one for high power devices (with 15 A fuse). https://cdn.kastatic.org/ka-youtube-converted/W445X85Z17g.mp4/W445X85Z17g.mp4 815 Electromagnetism https://www.khanacademy.org/science/telangana-class-10-physical-sciencein/x1ac9c643dc8dffee:in-in-electricity/x1ac9c643dc8dffee:overload/v/overload-short-circuit-domestic-circuits-part-3 2020-09-09T12:23:24Z Overload & short circuit: Domestic circuits (Part 3) Overload happens when current exceeds a safe value. Sometimes this happens due to voltage spikes. Attaching too many devices is also a very common cause. Sometimes there is a short circuit. A short circuit is when a very low resistance path is created, causing enormous amounts of current. For example, when a live wire touches a neutral wire, it creates a short circuit. Overload protection and short circuit protection can be done by using an electric fuse. Mahesh Shenoy video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Overload & short circuit: Domestic circuits (Part 3) Overload happens when current exceeds a safe value. Sometimes this happens due to voltage spikes. Attaching too many devices is also a very common cause. Sometimes there is a short circuit. A short circuit is when a very low resistance path is created, causing enormous amounts of current. For example, when a live wire touches a neutral wire, it creates a short circuit. Overload protection and short circuit protection can be done by using an electric fuse. https://cdn.kastatic.org/ka-youtube-converted/qVbBRppSpzE.mp4/qVbBRppSpzE.mp4 549 Electromagnetism https://www.khanacademy.org/science/odisha-board-preparation-class-10in/x3c214daca98fdd3d:week-3/x3c214daca98fdd3d:magnetic-effects-of-electric-current/e/magnetic-effects-of-electric-current 2026-04-07T22:23:57.656416987Z Magnetic effects of electric current / Electromagnetism Let's practice vibhor exercise