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Lecture in Electric Potential | Physics

Lesson Objectives – the students should be able to:

• Write from memory the definitions of electric potential, and electric potential difference.
• Distinguish between electric potential, electric potential energy, and electric potential difference.
• Draw the electric field pattern and equipotential line pattern which exist between charged objects.
• Determine the magnitude of the potential at a point a known distance from a point charge or an arrangement of point charges.
• State the relationship between electric potential and electric field and determine the potential difference between two points a fixed distance apart in a region where the electric field is uniform.
• Determine the kinetic energy in both joules and electron volts of a charged particle which is accelerated through a given potential difference.
• Explain what is meant by an electric dipole and determine the magnitude of the electric dipole moment between two point charges.
• Given the dimensions, distance between the plates, and the dielectric constant of the material between the plates, determine the magnitude of the capacitance of a parallel plate capacitor.
• Given the capacitance, the dielectric constant, and either the potential difference or the charge stored on the plates of a parallel plate capacitor, determine the energy and the energy density stored in the capacitor.
• Understand the functions and operations of Cathode Ray Tube: TV and Computer Monitors, Oscilloscope
• Know The Electrocardiogram (ECG or EKG)

Summary of Chapter 17

• Electric potential energy:
• Electric potential difference: work done to move charge from one point to another
• Relationship between potential difference and field:
• Equipotential: line or surface along which potential is the same
• Electric potential of a point charge:
• Electric dipole potential:
• Capacitor: nontouching conductors carrying equal and opposite charge
• Capacitance:
• Capacitance of a parallel-plate capacitor:
• A dielectric is an insulator
• Dielectric constant gives ratio of total field to external field
• Energy density in electric field:

Units of Chapter 17 – Keywords

• Electric Potential Energy and Potential Difference
• Relation between Electric Potential and Electric Field
• Equipotential Lines
• The Electron Volt, a Unit of Energy
• Electric Potential Due to Point Charges
• Potential Due to Electric Dipole; Dipole Moment
• Capacitance
• Dielectrics
• Storage of Electric Energy
• Cathode Ray Tube: TV and Computer Monitors, Oscilloscope
• The Electrocardiogram (ECG or EKG)

List of Applied Physics / Physics 2 Lectures

credit: Giancoli Physicsยฉ2013 www.PinoyBIX.org

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