ECE106 Lecture Notes - Lecture 40: Electric Field, Test Particle

• School: University of Waterloo
• Department: Electrical and Computer Engineering
• Course: ECE106
• Professor: All

Document Summary

Wab is work done by the electric field in moving q0 from a to b. W = f e d l = (q0e ) d l. A hence, (v v ) = . Unit: if 1 joule of work is done to move a unit positive charge from a to b, then the potential difference between these two points is said to be 1 volt, i. e. , (5. 5) (5. 6) (5. 7) Using point a as a reference point and arbitrarily assign a value of zero to it (va define potential at any other point (b) as: The potential defference (vb va) is independent of the path followed in moving the test charge from a to b. Proof: considering a point charge field firstly. p1. Figure 5. 2: path i is along the electric field direction in the first segment, then perpendicular to the electric field direction. Path ii is an arbitrary path other than path i.