@Nitin Sir: when all magnetic dipoles(current carrying loop) finally align in direction of B & stops in Magnetism & Matter Unit, then why a loop placed in external B when given supply(which is infact a dipole) rotates continuously as Motor ie do not stop when aligned with B while rotating in EMI Unit.

2. In Magnetism & Matter Unit, Tangent Law & Tangent Galvanometer has not been covered while this topic is also in CBSE syllabus as well as important also, please provide video lecture of this topic also and reply suitably.