PHY 303L Study Guide - Final Guide: Relative Permittivity, Voltmeter, Ammeter
Document Summary
Electric force is much greater than the mechanical force. A point charge is not affected by its own electric field. Direction of field depends on direction of r and sign of q. Electric field in a uniformly charged sphere is 0. Electric field outside of a uniformly charged sphere is same. Electric field of a dipole along the vertical axis. Electric field of a dipole along the horizontal axis. Electric field of a dipole along the horizontal axis if r >> s where r is the distance between the observation point and the center of the dipole and s is the distance between the proton and electron. Electric field of a dipole along the vertical axis if r >> s. Electric fields of a positively charged particle radiate outward while the electric field of a negative particle radiates toward the particle. Electric field around a dipole is exactly what you would expect by putting that ^ and superposition together.
