PHY 134 Lecture Notes - Lecture 1: Electric Potential Energy, Test Particle, Electric Field
24 Sep 2018
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Document Summary
The purpose of this lab was to investigate electric potential and field through the use of electrodes connected to a dc battery. Lines of equal electric potential energy, called equipotential lines, would then be plotted to visually represent the electric field. Any electrically charged object produces an electric field around it. The electric field of a positively charged object radiates outwards, whereas the electric field of a negatively charged object radiates inwards. Where the electric field lines are densest, which is near the charged object the strength of the electric field is greatest. The electric field is thus defined by the following equation: (cid:1831) = 140(cid:3045) , where 0 = 8. 85 10 12c2/n m2 and is the permittivity of space, q is the electric charge of the point charge, r is the radius from the point charge, and is the vector that points radially outwards from the point charge.
