PHYS 1750: SELECTED TOPICS in PHYSICS
LECTURE 30. Electric Potential
18.1-2. | Electric Potential | |
1. | Electrostatic force is conservative | |
2. | W = F*d = q*E*d = -Δ(PE) in uniform field E | |
3. | Electric potential difference Δ(V) = Δ(PE) /q = E*d | |
4. | Volt = J/C; Electric field often expressed in V/m instead of N/C | |
18.3. | Point Charges | |
1. | V=k*q/r | |
2. | Superposition | |
3. | PE = q2V1 | |
18.4. | Charged Conductors | |
1. | Potential constant on the surface | |
2. | Same potential in the interior |