All Flashcards
What is the relationship between Electric Potential Energy and Electric Potential (Voltage)?
Electric Potential Energy: Energy a charge has due to its position in an electric field. | Electric Potential: Voltage; .
Compare positive and negative electric potential energy.
Positive Potential Energy: Requires work to bring like charges together. | Negative Potential Energy: Requires work to separate unlike charges.
How do you calculate total electric potential energy for multiple charges?
Calculate the potential energy for every unique pair of charges and then sum them up.
What is the first step to solving an electric potential energy problem?
Draw a diagram of the charge configuration.
Define Electric Potential Energy.
Work done by an external force to bring charges from infinitely far apart to their current positions; stored energy ready to do work.
What is in the context of Electric Potential Energy?
Electric potential energy, measured in Joules (J).
Define 'q' in the Electric Potential Energy formula.
The charge of an object, measured in Coulombs (C).
What is 'r' in the Electric Potential Energy formula?
The distance between the charges, measured in meters (m).
Define Coulomb's constant (k).
A constant equal to N⋅m²/C² or .
Define .
Permittivity of free space constant ( C²/N⋅m²).