Lecture in Electric Charge and Electric Field

(Last Updated On: December 8, 2017)
Applied Physics Lecture: Electric Charge and Electric Field

Lesson Objectives – the students should be able to:

  • State from memory the magnitude and sign of the charge on an electron and proton and also state the mass of each particle.
  • Apply Coulomb’s law to determine the magnitude of the electrical force between point charges separated by a distance r and state whether the force will be one of attraction or repulsion.
  • State from memory the law of conservation of charge.
  • Distinguish between an insulator, a conductor, and a semi conductor and give examples of each.
  • Explain the concept of electric field and determine the resultant electric field at a point some distance from two or more point charges.
  • Determine the magnitude and direction of the electric force on a charged particle placed in an electric field.
  • Sketch the electric field pattern in the region between charged objects.
  • Use Gauss’s law to determine the magnitude of the electric field in problems where static electric charge is distributed on a surface which is simple and symmetrical.
  • Could understand Static Electricity; Electric Charge and Its Conservation
  • Solving Problems Involving Coulomb’s Law and Vectors
  • Learn Electric Forces in Molecular Biology: DNA Structure and Replication
  • Understand Photocopy Machines and Computer Printers Use Electrostatics

Lecture on Electric Charge and Electric Field PPT

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Summary of Chapter 16

  • Two kinds of electric charge – positive and negative
  • Charge is conserved
  • Charge on electron:
    Charge on electron
  • Conductors: electrons free to move
  • Insulators: nonconductors
  • Charge is quantized in units of e
  • Objects can be charged by conduction or induction
  • Coulomb’s law:
    Coulomb’s law
  • Electric field is force per unit charge:
    Electric field Formula
  • Electric field of a point charge:
    Electric field of a point charge
  • Electric field can be represented by electric field lines
  • Static electric field inside conductor is zero; surface field is perpendicular to surface
  • Electric flux:
    Electric flux formula
  • Gauss’s law:
    Gauss’s law

Units of Chapter 16 – Keywords

  • Static Electricity; Electric Charge and Its Conservation
  • Electric Charge in the Atom
  • Insulators and Conductors
  • Induced Charge; the Electroscope
  • Coulomb’s Law
  • Solving Problems Involving Coulomb’s Law and Vectors
  • The Electric Field
  • Field Lines
  • Electric Fields and Conductors
  • Gauss’s Law
  • Electric Forces in Molecular Biology: DNA Structure and Replication
  • Photocopy Machines and Computer Printers Use Electrostatics

List of Applied Physics / Physics 2 Lectures

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credit: Giancoli Physics©2013 www.PinoyBIX.org
Lecture in Electric Charge and Electric Field
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