PHYS UN1402 Chapter Notes - Chapter 27: Chapter 27, Work Unit, Voltmeter

• School: Columbia University
• Department: Physics
• Course: PHYS UN1402
• Professor: Georgia Karagiorgi

Document Summary

Emf e can be a battery is e i ti si o. Di da the work per unit charge tmhawtintgheogleayiguefrdoomesii. in to its high potential low potential. Ideal emf device : resistance to the internal movement of charge . oar between terminals of idea , em. is equal to the emf of device . i = e- Va t e - i r = va. Complete loop - our initial potential must be equal to our final potential. For a move through a resistance in the direction of the current , the change in potential is in the opposite direction it is. Emf rule : for a move through an ideal emf device in the direction of the emf arrow , the change in. Pdigteeynjanl iisiste. ie . in the opposite is it t a i. V b - va = v = e - ir. Grounding : connecting path to earth "s surface .