https://www.khanacademy.org/science/grade-11-physics-snc-aligned/x1d0fed5276339e80:electrostatics/x1d0fed5276339e80:electric-fields-coulombs-law-and-faraday-cage/v/electrostatics-part-2 2023-09-10T17:11:17.624018169Z Electric field We can think of the forces between charges as something that comes from a property of space. That property is called the electric field. Charges shape the space around them, forming an electric field that interacts with other charges. The tutorial covers Coulomb's Law, electric field lines, and the role of distance in field strength. Ideal for premed students delving into electrostatics. Sal Khan video https://cdn.kastatic.org/googleusercontent/gIwca7d-uRWDvJiRhd7c7UUakVDM9hB1VavL2U1muPnMp1MkkgKyW3067eOY3Pir3jbDcoejHTzYfmdvw-7elpeQlQ Electric field We can think of the forces between charges as something that comes from a property of space. That property is called the electric field. Charges shape the space around them, forming an electric field that interacts with other charges. The tutorial covers Coulomb's Law, electric field lines, and the role of distance in field strength. Ideal for premed students delving into electrostatics. https://cdn.kastatic.org/ka-youtube-converted/0YOGrTNgGhE.mp4/0YOGrTNgGhE.mp4 812 Electric fields, coulomb’s law, and faraday cage https://www.khanacademy.org/science/up-class-12-physics/x0958a876c1afdc76:electric-charged-and-fields/x0958a876c1afdc76:electric-field/e/electric-field 2026-04-07T23:55:07.30621384Z Electric field Let's solve some questions vibhor exercise https://www.khanacademy.org/science/ap-physics-2/x0e2f5a2c:electric-force-field-and-potential/x0e2f5a2c:electric-fields/e/force-in-electric-field 2026-04-07T22:23:57.656416987Z Force on charged particle in electric field Let's solve some problems to better understand the direction and magnitude of force acting on a charged particle in an electric field. Aakash exercise https://www.khanacademy.org/science/electrical-engineering/ee-electrostatics/ee-electric-force-and-electric-field/a/ee-electric-field 2025-04-15T11:12:52.72749553Z Electric field Definition of the electric field. Electric field near a point charge. article https://www.khanacademy.org/science/ap-physics-2/x0e2f5a2c:electric-force-field-and-potential/x0e2f5a2c:electric-fields/v/electric-field-direction 2021-02-07T17:14:00Z Electric field direction The direction of an electrical field at a point is the same as the direction of the electrical force acting on a positive test charge at that point. For example, if you place a positive test charge in an electric field and the charge moves to the right, you know the direction of the electric field in that region points to the right. David SantoPietro video https://cdn.kastatic.org/googleusercontent/O1tnf-vr-XVJ7EFMNcHdh4GnfljCpbiIHpzUKdlN_66ZuAt5iEtYDvwxj1Ycjj3IkGhkX2DVftluDt3eZifhDrHe4Q Electric field direction The direction of an electrical field at a point is the same as the direction of the electrical force acting on a positive test charge at that point. For example, if you place a positive test charge in an electric field and the charge moves to the right, you know the direction of the electric field in that region points to the right. https://cdn.kastatic.org/ka-youtube-converted/Z_ddImEdmCQ.mp4/Z_ddImEdmCQ.mp4 756 Electric fields, coulomb’s law, and faraday cage https://www.khanacademy.org/science/ap-physics-2/x0e2f5a2c:electric-force-field-and-potential/x0e2f5a2c:electric-fields/v/net-electric-field-from-multiple-charges-in-1d 2021-07-06T11:20:12Z Net electric field from multiple charges in 1D In this video David solves an example problem to find the net electric field created by multiple charges at a point in between them. David SantoPietro video https://cdn.kastatic.org/googleusercontent/-CDwirxH74r_U4GMbEN9WQuHwePJaXKTvkAujazeAotbFjyDXqly9wWOCZ6Czx73K1VoAoEQl_-oitOek9S_CW45 Net electric field from multiple charges in 1D In this video David solves an example problem to find the net electric field created by multiple charges at a point in between them. https://cdn.kastatic.org/ka-youtube-converted/qzUE0ey1yQA.mp4/qzUE0ey1yQA.mp4 447 Electric fields, coulomb’s law, and faraday cage https://www.khanacademy.org/science/ap-physics-2/x0e2f5a2c:electric-force-field-and-potential/x0e2f5a2c:electric-fields/e/net-electric-field-due-to-multiple-charges-1d 2026-04-07T22:23:57.656416987Z Superposition principle (basic) Let's solve some problems to better understand how to calculate the net electric field at a point due to multiple charges arranged in a straight line. Aakash exercise https://www.khanacademy.org/science/ap-physics-2/x0e2f5a2c:electric-force-field-and-potential/x0e2f5a2c:electric-fields/v/net-electric-field-from-multiple-charges-in-2d 2021-07-06T11:20:20Z Net electric field from multiple charges in 2D In this video David solves an example 2D electric field problem to find the net electric field at a point above two charges. David SantoPietro video https://cdn.kastatic.org/googleusercontent/cA9prm-Q2jGf1gxfRlmNjDsMKHZPswoo75mmO1fJdR-2O2s_mWUQTvioTnIFbAu2vuTuPu_s9umwUKiOwSinwwE Net electric field from multiple charges in 2D In this video David solves an example 2D electric field problem to find the net electric field at a point above two charges. https://cdn.kastatic.org/ka-youtube-converted/ClLmdWL0bIQ.mp4/ClLmdWL0bIQ.mp4 619 Electric fields, coulomb’s law, and faraday cage https://www.khanacademy.org/science/up-class-12-physics/x0958a876c1afdc76:electric-potential-and-capacitance/x0958a876c1afdc76:electrostatics-of-conductors/v/electrostatic-shielding-faraday-cage 2021-03-23T22:22:55Z Electrostatic shielding & Faraday cage Let's explore why electric fields cannot penetrate a closed conductor. This makes a closed conductor shield the inside from outside electric fields. They are useful in protecting sensitive electronic equipment's from stray fields. This effect was first studied by Michael Faraday, and hence closed conductors are often called Faraday cages. Mahesh Shenoy video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Electrostatic shielding & Faraday cage Let's explore why electric fields cannot penetrate a closed conductor. This makes a closed conductor shield the inside from outside electric fields. They are useful in protecting sensitive electronic equipment's from stray fields. This effect was first studied by Michael Faraday, and hence closed conductors are often called Faraday cages. https://cdn.kastatic.org/ka-youtube-converted/MnZD5Fi0VJM.mp4/MnZD5Fi0VJM.mp4 598 Electric fields, coulomb’s law, and faraday cage https://www.khanacademy.org/science/up-class-12-physics/x0958a876c1afdc76:electric-potential-and-capacitance/x0958a876c1afdc76:electrostatics-of-conductors/e/conductors-and-electric-fields 2026-04-07T22:23:57.656416987Z Electrostatic properties of conductors Let's practice some problems to better understand the electrostatic properties of conductors. exercise https://www.khanacademy.org/science/ap-physics-2/x0e2f5a2c:electric-force-field-and-potential/x0e2f5a2c:electric-charge-and-electric-force/v/coulombs-law 2023-05-08T05:49:08.737504344Z Coulomb's law Coulomb's law describes the strength of the electrostatic force (attraction or repulsion) between two charged objects. The electrostatic force is equal to the charge of object 1 times the charge of object 2, divided by the distance between the objects squared, all times the Coulomb constant (k).  video https://cdn.kastatic.org/googleusercontent/F-KYHOt50jlqd6nAQqHi7UUzEqwsWl3pFpscH3DdZk3LcDx-AMpO1IGO7Os1gkMlNp11dXj17LRTJxV2_DRQxq2G Coulomb's law Coulomb's law describes the strength of the electrostatic force (attraction or repulsion) between two charged objects. The electrostatic force is equal to the charge of object 1 times the charge of object 2, divided by the distance between the objects squared, all times the Coulomb constant (k).  https://cdn.kastatic.org/ka-youtube-converted/2GQTfpDE9DQ.mp4/2GQTfpDE9DQ.mp4 711 Electric fields, coulomb’s law, and faraday cage https://www.khanacademy.org/science/highschool-physics/x6679aa2c65c01e53:electrostatics/x6679aa2c65c01e53:coulombs-law/e/understand-coulombs-law 2026-04-07T22:59:30.107127435Z Understand: Coulomb's law Check your understanding of Coulomb's law in this set of free practice questions. Emily Cizmas exercise https://www.khanacademy.org/science/highschool-physics/x6679aa2c65c01e53:electrostatics/x6679aa2c65c01e53:coulombs-law/e/apply-coulombs-law 2026-03-26T05:30:45.387289448Z Apply: Coulomb's law Apply your knowledge of Coulomb's law in this set of free practice questions. Emily Cizmas exercise https://www.khanacademy.org/science/ap-physics-2/x0e2f5a2c:electric-force-field-and-potential/x0e2f5a2c:electric-fields/v/magnitude-of-electric-field-created-by-a-charge 2022-11-16T04:22:43.7414897Z Magnitude of electric field created by a charge An electric field is a vector field that describes the force that would be exerted on a charged particle at any given point in space. A point charge is concentrated at a single point in space. Learn about the formula used to find the magnitude and direction of the electric field between two point charges, and see two examples of how to calculate the magnitude of an electric field. David SantoPietro video https://cdn.kastatic.org/googleusercontent/m07ztK2svrNgIHC5uSeNugrAkpaMeMeoJQT3jRJy2lvwpptW8dAQiomUOhWeXrRlNgDtRgkR1urECR8sIqk3Avg Magnitude of electric field created by a charge An electric field is a vector field that describes the force that would be exerted on a charged particle at any given point in space. A point charge is concentrated at a single point in space. Learn about the formula used to find the magnitude and direction of the electric field between two point charges, and see two examples of how to calculate the magnitude of an electric field. https://cdn.kastatic.org/ka-youtube-converted/-LtvW5783zE.mp4/-LtvW5783zE.mp4 608 Electric fields, coulomb’s law, and faraday cage https://www.khanacademy.org/science/ap-physics-2/x0e2f5a2c:electric-force-field-and-potential/x0e2f5a2c:electric-fields/e/electric-field-due-to-point-charge 2026-04-07T23:17:37.123726494Z Electric field due to a point charge Let's practice some problems to better understand the direction and magnitude of the electric field produced by a point charge. aakash exercise