Important Derivations for Class 12 Physics Chapter 6 Electromagnetic Induction (1) Derivation of Emf induced in a rod moving in a uniform magnetic field. The magnetic flux linked with the area SPQR is: $$ \phi_R=B A \cos \theta=B l x \cos 0=B l x $$ As the rod PQ is moving towards left with a … Read more
Important Derivations for Class 12 Physics Chapter 4 Moving Charges and Magnetism Here we are providing important derivations for Class 12 Physics Chapter 4 Moving Charges and Magnetism. (1) Biot Savarts Law With the help of experimental results, Biot and Savart arrived at a mathematical expression that givesthe magnetic field at some point in space … Read more
Important Derivations for Class 12 Physics Chapter 1 Electric Charges and Fields Q.1. Using Gauss’s law, prove that the electric field at a point due to a uniformly charged infinite plane sheet is independent of the distance from it. Solution: Q.2. Derive an expression for the torque experienced by an electric dipole kept in a … Read more
Important Derivations for Class 12 Physics Chapter 10 Wave Optics Derivations related to Huygens’ Principle (1) Using Huygens’ principle, verify the laws of reflection at a plane surface. First the wavefront touches the reflecting surface at B and then at the successive points towards C. In accordance with Huygens’ principle, from each point on BC … Read more
