Electric Potential and Electric Field Quiz
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Questions and Answers

What happens to the electric potential as you move in the direction opposite to the electric field?

  • It remains constant
  • It increases (correct)
  • It decreases
  • It becomes zero

    • In a uniform electric field, which point is at a higher potential between points A and C?

  • Cannot be determined from the given information
  • Point C
  • Point A (correct)
  • Both are at the same potential

    • If a negative charge is moved from point A to point B in a uniform electric field, what happens to its electric potential energy?

  • Doesn’t change
  • Increases
  • Becomes zero
  • Decreases (correct)

    • What is the potential difference between points A and B in a uniform electric field?

    <p>$\Delta V_{AB} = 0$</p> Signup and view all the answers

    What is true about the electric field and the equipotential surface?

    <p>The electric field does no work as a charge is moved along an equipotential surface</p> Signup and view all the answers

    What happens when a test charge is moved from one point to another on an equipotential surface?

    <p>No net work is done on the charge</p> Signup and view all the answers

    What do a given set of points at the same potential form?

    <p>An equipotential surface</p> Signup and view all the answers

    What is the formula for the electric potential energy of a charge at a location in an electric field?

    <p>$pE = qV$</p> Signup and view all the answers

    What is the unit used for energy in addition to joules?

    <p>eV</p> Signup and view all the answers

    What is the work required to slowly move a charge q3 from infinity to the origin?

    <p>$qV$</p> Signup and view all the answers

    What is the formula for the electric potential due to a point charge?

    <p>$V = \frac{1}{4\pi\varepsilon_0} \frac{q}{r}$</p> Signup and view all the answers

    Study Notes

    Electric Potential and Electric Field

    • As you move in the direction opposite to the electric field, the electric potential increases.
    • In a uniform electric field, the point farther away from the direction of the electric field is at a higher potential.
    • When a negative charge is moved from point A to point B in a uniform electric field, its electric potential energy decreases.

    Equipotential Surfaces

    • The electric field is perpendicular to the equipotential surface.
    • When a test charge is moved from one point to another on an equipotential surface, its electric potential energy remains the same.
    • A set of points at the same potential form an equipotential surface.

    Electric Potential Energy

    • The formula for the electric potential energy of a charge at a location in an electric field is U = k * q * Q / r.
    • The unit used for energy in addition to joules is electronvolts (eV).

    Electric Potential due to a Point Charge

    • The formula for the electric potential due to a point charge is V = k * Q / r.
    • The work required to slowly move a charge q3 from infinity to the origin is the negative of the electric potential energy at the origin.

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    Description

    Test your understanding of electric potential and electric field with this quiz. Questions cover topics such as the relationship between potential and electric field, and calculating potential difference in a uniform electric field.

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