PHYS 1004 Lecture Notes - Lecture 2: Test Particle, Electric Field

• School: Carleton University
• Department: Physics
• Course: PHYS 1004
• Professor: Dag Gillberg

Document Summary

Net charge q = 29e - 29e = 0 (they balance out, no excess charge) Net charge q = 29e - 27e = 2e (net charge of 2e) A javelin is affected by the force of gravity. Gravity is also the only force at work (assuming no air resistance) while airborne. Force per unit charge (r hat q1. F is the force on a test particle. Q is the charge of test particle. The electric field lines for a positively charged particle will go outwards. The electric field lines for a negatively charged particle will go inwards. This is because the convention is to have a positive test charge. However, if you were to use ( f. = q e electric field, you end up with a positive force. ) with a negative test charge and a negative. A positively and a negatively charged particle"s interactions. Parallel plates (also known as a capacitor )