PHYS 102 Lecture Notes - Lecture 6: Terminal Velocity, Defibrillation, Farad

• School: McGill University
• Department: Physics
• Course: PHYS 102
• Professor: Nick Provatas

Document Summary

Work done is change in potential energy. Overall voltage at point p is the sum of all voltage values from q1, q2, q3, etc. U = qv; bringing charge q from infinity to distance r from charge q (potential energy of a charge q at that position. Some could take some knowledge and familiarity with geometry. A is closer to positive charge so it takes greater work to move to point a. For this position and setup above, all points along the x-axis would be v = 0. Ua + kea = keinf + uinf. Vinf is terminal velocity; velocity at a point which electrical force from the stationary charge, often denoted by q, is almost uninfluential. Potential energy (u) of collection or charges is the amount of work needed to assemble the charges. Consider the work that has to be done due to other charge(s) Total work done: wa + wb + wc.