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- https://phys.libretexts.org/Courses/Prince_Georges_Community_College/PHY_2030%3A_General_Physics_II/19%3A_Electric_Current_and_Resistance/19.2%3A_Electric_CurrentA battery is a device that converts chemical energy directly to electrical energy.
- https://phys.libretexts.org/Learning_Objects/Visualizations_and_Simulations/PhET_Simulations/PhET%3A_Ohm's_LawSee how the equation form of Ohm's law relates to a simple circuit. Adjust the voltage and resistance, and see the current change according to Ohm's law.
- https://phys.libretexts.org/Courses/Kettering_University/Electricity_and_Magnetism_with_Applications_to_Amateur_Radio_and_Wireless_Technology/03%3A_The_Electric_Potential/3.05%3A_Electric_PotentialElectric potential is potential energy per unit charge. The potential difference between points A and B, that is, the change in potential of a charge q moved from A to B, is equal to the change in pot...Electric potential is potential energy per unit charge. The potential difference between points A and B, that is, the change in potential of a charge q moved from A to B, is equal to the change in potential energy divided by the charge. Potential difference is commonly called voltage, represented by the symbol ΔV.
- https://phys.libretexts.org/Courses/Grand_Rapids_Community_College/PH246_Calculus_Physics_II_(2025)/03%3A_Electric_Potential/3.03%3A_Electric_Potential_and_Potential_DifferenceElectric potential is potential energy per unit charge. The potential difference between points \(A\) and \(B\), \(V_B−V_A\), that is, the change in potential of a charge \(q\) moved from \(A\) to \...Electric potential is potential energy per unit charge. The potential difference between points \(A\) and \(B\), \(V_B−V_A\), that is, the change in potential of a charge \(q\) moved from \(A\) to \(B\), is equal to the change in potential energy divided by the charge. Potential difference is commonly called voltage, represented by the symbol \(ΔV\).
- https://phys.libretexts.org/Courses/Joliet_Junior_College/PHYS202_-_JJC_-_Testing/01%3A_Conceptual_Objective_1/1.01%3A_OverviewAtoms contain negatively charged electrons and positively charged protons; the number of each determines the atom’s net charge.
- https://phys.libretexts.org/Courses/Georgia_State_University/GSU-TM-Introductory_Physics_II_(1112)/04%3A_Electric_Potential_Energy_Electrical_Potential_or_Voltage_and_Capacitance/4.04%3A_Electric_Potential_and_Potential_DifferenceElectric potential is potential energy per unit charge. The potential difference between points A and B, VB−VA, that is, the change in potential of a charge q moved from A to B, is equal to the chan...Electric potential is potential energy per unit charge. The potential difference between points A and B, VB−VA, that is, the change in potential of a charge q moved from A to B, is equal to the change in potential energy divided by the charge. Potential difference is commonly called voltage, represented by the symbol ΔV.
- https://phys.libretexts.org/Bookshelves/University_Physics/Physics_(Boundless)/17%3A_Electric_Charge_and_Field/17.1%3A_OverviewAtoms contain negatively charged electrons and positively charged protons; the number of each determines the atom’s net charge.
- https://phys.libretexts.org/Courses/Georgia_State_University/GSU-TM-Introductory_Physics_II_(1112)/04%3A_Electric_Potential_Energy_Electrical_Potential_or_Voltage_and_Capacitance/4.02%3A_Electric_Potential_Energy_and_Electrical_Potential_DifferenceA convenient choice of reference that relies on our common sense is that when the two charges are infinitely far apart, there is no interaction between them. (Recall the discussion of reference potent...A convenient choice of reference that relies on our common sense is that when the two charges are infinitely far apart, there is no interaction between them. (Recall the discussion of reference potential energy in Potential Energy and Conservation of Energy.) Taking the potential energy of this state to be zero removes the term \(U_{ref}\) from the equation (just like when we say the ground is zero potential energy in a gravitational potential energy problem), and the potential energy of Q when…
- https://phys.libretexts.org/Courses/Bowdoin_College/Phys1140%3A_Introductory_Physics_II%3A_Part_1/03%3A_Electric_Potentials/3.03%3A_Electric_Potential_and_Potential_DifferenceElectric potential is potential energy per unit charge. The potential difference between points A and B, VB−VA, that is, the change in potential of a charge q moved from A to B, is equal to the chan...Electric potential is potential energy per unit charge. The potential difference between points A and B, VB−VA, that is, the change in potential of a charge q moved from A to B, is equal to the change in potential energy divided by the charge. Potential difference is commonly called voltage, represented by the symbol ΔV.
- https://phys.libretexts.org/Courses/Coalinga_College/Physical_Science_for_Educators_(CID%3A_PHYS_14)/12%3A_Magnetism/12.05%3A_Electromagnetism/12.5.06%3A_Induced_Voltage_and_Magnetic_FluxWhen the switch is closed, a magnetic field is produced in the coil on the top part of the iron ring and transmitted to the coil on the bottom part of the ring. It is the change in magnetic field that...When the switch is closed, a magnetic field is produced in the coil on the top part of the iron ring and transmitted to the coil on the bottom part of the ring. It is the change in magnetic field that creates the current in the following way: a changing magnetic field induces an electric field, which results in the induced voltage. The faster the motion, the greater the voltage, and there is no voltage when the magnet is stationary relative to the coil.
- https://phys.libretexts.org/Courses/Georgia_State_University/GSU-TM-Physics_II_(2212)/04%3A_Electric_Potential_and_Capacitance/4.02%3A_Electric_Potential_and_Potential_DifferenceRecall that earlier we defined electric field to be a quantity independent of the test charge in a given system, which would nonetheless allow us to calculate the force that would result on an arbitra...Recall that earlier we defined electric field to be a quantity independent of the test charge in a given system, which would nonetheless allow us to calculate the force that would result on an arbitrary test charge. (The default assumption in the absence of other information is that the test charge is positive.) We briefly defined a field for gravity, but gravity is always attractive, whereas the electric force can be either attractive or repulsive.
