PHYS 152 Chapter Notes - Chapter 19: Electric Potential Energy, Differential Calculus, Test Particle
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19 electric potential and electric field9/7/2016 9:22:00 am. 2 most familiar aspects of electricity: energy, voltage. Means that the work done on q is indep. of the path taken. Exactly analogous to the gravitational force in the absence of dissipative forces: such as friction. When a force is conservative, it is possible to define a pot. energy associated w/the force, and it is usually easier to deal w/the pot. energy (because it deps only on position) than to calculate the work dir. -ly. The car battery can move more charge than the motorcycle battery, although both are 12 v batteries. Look @ example 19. 2 how many electrons move through a headlight. An electron is accelerated between 2 charged metal plates: as it might be in an old-model television tube or oscilloscope. The electron is given ke that is later converted to another form: ex) light in the television tube. Note: downhill for the electron is uphill for a pos. charge.
