ECE106 Lecture Notes - Lecture 9: Electric Field

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

Document Summary

4 s0r2 (r + d)2q2 = q1r2 from which r can be calculated. E field lines : it is convenient to visualize the electric field pattern by lines of force. Question: if the e field lines are straight and we release a charge, how will it move? q. Assuming q is released at rest, then q will experience a force in the direction of e and the charge will move in that direction. However, this would only happen in this very special case where the field lines are uniform and straight. If the field lines are curved, it would experience the force f q and it will accelerate tangentially to e . Then the direction of force will change and the motion of charge would be complex. So keep in mind that field lines are not trajectory of motion. Now consider two positive charges with different values such as shown. As seen you will get a hair blower effect.