1. Electrical Energy & Capacitance Pgs. 665 - 682

2. Potential Difference Electric potential
The electrical potential energy associated with a charged particle divided by the charge of the particle
The electrical potential at a point is independent of the charge at that point

3. SI unit for potential difference – volt (V)
The change in electrical potential
SI unit for potential difference – volt (V)

4. An ion is displaced through a potential difference of 40
An ion is displaced through a potential difference of 40.0 V and experiences an increase of electrical potential energy of 2.23 x J. Calculate the charge on the ion.

5. The potential difference in a uniform field varies with the displacement from a reference point
Magnitude of the electric field (E) in this equation has units of V/m

6. A 1.5 V battery is connected across two parallel metal plates separated by .24 cm. Find the magnitude of the electric field.

7. The reference point for potential difference near a point charge is often infinity
An electric potential exists at some point in an electric field regardless of whether there is a charge at that point

9. Find the potential difference between a point infinitely far away and a point 2.5 cm from a proton.

10. A battery does work to move charges
1 C of charge starts at the
Negative terminal - ∆V = 0
Electric field works to move the charge to the
Positive terminal - ∆V = 12
As the charge moves back to the negative terminal, it gives up the 12J to the external devices