2 A conducting arm AB of length 30 cm moves on conducting

Last updated: 6/14/2023

2 A conducting arm AB of length 30 cm moves on conducting rails held parallel A uniform magnetic field B 0 2 T exists perpendicular to planes of rails Only the conducting arm has resistance of 0 5 02 The arm is pulled out with constant speed of 20 ms how much force is required parallel to rails to keep it moving at same speed NCERT Pg 216 A 0 30 m OB Rail v 20 ms Rail