Chapter1 magnetic and induction Fire Alarm, Smoke Detector and Automatic Sprinkle System Lecture 8 3_n_8_4_magnetic_force Lecture 8 2_magnetic_force Lecture 8 1_magnetic_field Lecture 6 4_electric_flux_and_gauss_law Lecture 5 3_pascal_principle Lecture 5 2_archimedes_principle Lecture 5 1_mass_and_density 
