PHYS 0175 Lecture Notes - Ampere, Torsion Spring, Test Particle
Document Summary
Schematic representations of electron orbits around li nucleus: Masses & charges of the particles from which atoms are constituted: Electron: me = 9. 109 x 10-31 kg qe = - 1. 602 x 10-19 c. Proton: m = 1 673 x 10-27 kg mp kg. 1. 673 x 10 q = + 1 602 x 10-19 c qp. Neutron: mn = 1. 675 x 10-27 kg qn = 0. 000 c. Conservation of charge the algebraic sum of all the electric charges in any closed system is constant. Quantization of charge every observable amount of electric charge is always an integer multiple of the electron charge or the proton charge. Experiments showing that there are two kinds of charges: Conductors permit electric charge to move easily. (for example: copper, silver, gold; in fact, most metals) Insulators do not permit electric charge to move easily. (for example: plastic, wood, glass; in fact, most non-metals. )
