Physics - E&M: Ch 36.1 The Electric Field Understood (16 of 17) Charge in an Electric Field

Visit http://ilectureonline.com for more math and science lectures! In this video I will find the electric field E=?, making and angle theta=37-degrees, needed to keep a positively charge small object of q=68uC, mass m=5.8g attached to a string horizontally. Next video in this series can be seen at: