elementary charge

(noun)

The electric charge on a single proton.

Related Terms

  • transverse

Examples of elementary charge in the following topics:

  • The Electron-Volt

    • The electron volt is a unit of energy useful in the physics of elementary charges and electricity.
    • The electron volt, symbolized as eV and sometimes written as electronvolt, is a unit of energy useful in the physics of elementary charges and electricity.
    • The electron volt is defined as the amount of energy gained or lost by the charge of an electron moved across a one-volt electric potential difference.
    • As such, it is equal to the product of one volt (1 J/C) and one elementary charge, giving it a value in joules approximately equal to 1.602×10-19 J.
    • All calculations of energy from the above equation were quantized as multiples of the elementary charge, q, for a given voltage, and thus arose the common usage of the electron volt as a unit of measurement.
  • Static Electricity, Charge, and the Conservation of Charge

    • In both instances, charged particles will experience a force when in the presence of other charged matter.
    • The SI unit for charge is the Coulomb (C), which is approximately equal to $6.24\times 10^{18}$ elementary charges.
    • (An elementary charge is the magnitude of charge of a proton or electron. )
    • In physics, charge conservation is the principle that electric charge can neither be created nor destroyed.
    • The net quantity of electric charge, the amount of positive charge minus the amount of negative charge in the universe, is always conserved.
  • The Hall Effect

    • When a magnetic field is present that is not parallel to the motion of moving charges within a conductor, the charges experience the Lorentz force.
    • On the other face, there is an excess of opposite charge remaining.
    • Thus, an electric potential is created so long as the charge flows.
    • For a metal containing only one type of charge carrier (electrons), the Hall voltage (VH) can be calculated as a factor of current (I), magnetic field (B), thickness of the conductor plate (t), and charge carrier density (n) of the carrier electrons:
    • Express Hall voltage for a a metal containing only one type of charge carriers
  • The Millikan Oil-Drop Experiment

    • In 1911, using charged droplets of oil, Robert Millikan was able to determine the charge of an electron.
    • Performed by Robert Millikan and Harvey Fletcher in 1911, the experiment was designed to determine the charge of a single electron, otherwise known as the elementary electric charge.
    • Millikan then calculated the charge on particles suspended in mid-air.
    • Thus, it was concluded that the elementary electric charge was 1.5924(17)×10−19 C.
    • Explain the difference in value of a real electron's charge and the charge measured by Robert Millikan
  • Lattice Energy

    • It is defined as the heat of formation for ions of opposite charge in the gas phase to combine into an ionic solid.
    • In this equation, NA is Avogadro's constant; M is the Madelung constant, which depends on the crystal geometry; z+ is the charge number of the cation; z- is the charge number of the anion; e is the elementary charge of the electron; n is the Born exponent, a characteristic of the compressibility of the solid; $\epsilon _o$ is the permittivity of free space; and r0 is the distance to the closest ion.
    • This model emphasizes two main factors that contribute to the lattice energy of an ionic solid: the charge on the ions, and the radius, or size, of the ions.
    • as the charge of the ions increases, the lattice energy increases
  • Energy, Mass, and Momentum of Photon

    • A photon is an elementary particle, the quantum of light, which carries momentum and energy.
    • A photon is an elementary particle, the quantum of light.
    • It has no rest mass and has no electric charge.
    • For example, when a charge is accelerated it emits photons, a phenomenon known as synchrotron radiation.
  • Additional Resources

    • Anybody can view this content free of charge either as an online e-book or a downloadable PDF file.
    • This companion to Collaborative Statistics provides a number of additional resources for use by students and instructors based on the award winning Elementary Statistics Sofia online course http://sofia.fhda.edu/gallery/statistics/index.html, also by textbook authors Barbara Illowsky and Susan Dean.
    • "Elementary Statistics: Video Lecture - Hypothesis Testing with a Single Mean"
    • "Elementary Statistics: Video Lecture - Hypothesis Testing with Two Means"
  • Photon Interactions and Pair Production

    • Pair production refers to the creation of an elementary particle and its antiparticle, usually when a photon interacts with a nucleus.
    • Below is an illustration of pair production, which refers to the creation of an elementary particle and its antiparticle, usually when a photon interacts with a nucleus.
    • Some other conserved quantum numbers such as angular momentum, electric charge, etc., must sum to zero as well.
  • Elementary Education

    • If so, then working in elementary education might be for you.
    • However, before you consider a career as an elementary school teacher, you should be able to answer the following questions: What does an elementary school teacher do?
    • Elementary education majors are often required to complete a teaching practicum – a student-teaching internship at an elementary school that is supervised and evaluated by a veteran teacher.
    • There are so many options for those considering a career in elementary education.
    • A teacher and her students in an elementary school classroom (USA, 2008. )
  • Rate Laws for Elementary Steps

    • The rate law for an elementary step is derived from the molecularity of that step.
    • The sum of each elementary step in a reaction mechanism must yield the overall reaction equation.
    • However, we cannot simply add the rate laws of each elementary step in order to get the overall reaction rate.
    • The molecularity of an elementary step in a reaction mechanism determines the form of its rate law.
    • Write rate laws for elementary reactions, explaining how the order of the reaction relates to the reaction rate
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