[{"Name":"Coulombs Law","TopicPlaylistFirstVideoID":0,"Videos":[{"Watched":false,"Name":"1 Coulomb_s Law","Duration":"11m 21s","ID":22259},{"Watched":false,"Name":"1.4 Continuous Charge Distribution - Bent Wire","Duration":"27m 41s","ID":22260},{"Watched":false,"Name":"1.5 Electric Field Of A Ring And Disk","Duration":"22m 15s","ID":22261},{"Watched":false,"Name":"1.6 Electric Field Of Solid Cylinder","Duration":"30m 43s","ID":22262},{"Watched":false,"Name":"1.103 Half Half Ring","Duration":"33m 38s","ID":22263},{"Watched":false,"Name":"1-104 Exercise - Non Uniformly Charged Ring","Duration":"33m 36s","ID":22264},{"Watched":false,"Name":"1-106 Electric Field Of Short Wire","Duration":"20m 42s","ID":22265},{"Watched":false,"Name":"1-107 Exercise - Field From Incomplete Ring","Duration":"16m 35s","ID":21370},{"Watched":false,"Name":"1-108 Exercise - Force of Rod on Rod","Duration":"14m 43s","ID":22266},{"Watched":false,"Name":"1-109 Exercise - Force of Rod on Disk","Duration":"13m 40s","ID":22267},{"Watched":false,"Name":"2 Superposition Principle","Duration":"6m 13s","ID":22268},{"Watched":false,"Name":"3 Exercise - Charge At The Corner Of A Square","Duration":"14m 17s","ID":21371},{"Watched":false,"Name":"4 Exercise - Charges At The Corners Of A Triangle","Duration":"15m 59s","ID":22269},{"Watched":false,"Name":"5 Exercise - Two Charged Balls","Duration":"9m 50s","ID":22270},{"Watched":false,"Name":"6 Exercise - Cathode Ray Tube","Duration":"16m 56s","ID":22271}],"ID":99473}]

[{"ID":99473,"Videos":[22259,22260,22261,22262,22263,22264,22265,21370,22266,22267,22268,21371,22269,22270,22271]}];

[22259,22260,22261,22262,22263,22264,22265,21370,22266,22267,22268,21371,22269,22270,22271];

1

3