Class XII Physics: Rotational Dynamics, Thermodynamics, Electromagnetism, Atomic Structure
16 Questions
5 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the study of electric charges at rest known as?

  • Electromagnetic induction
  • Oscillations
  • Superposition of waves
  • Electrostatics (correct)

    • What is the property by virtue of which a particle produces electrical influence around it?

  • Velocity
  • Charge (correct)
  • Acceleration
  • Mass

    • What do like charges do when they encounter each other?

  • They attract each other
  • They undergo no interaction
  • They repel each other (correct)
  • They cancel each other out

    • According to Coulomb's law, how does the force between two point static charges change with the distance between them?

    <p>It decreases inversely proportional to the distance squared</p> Signup and view all the answers

    What does the electric field intensity at a point represent?

    <p>The force acting on a unit positive charge at that point</p> Signup and view all the answers

    What are electric lines of force?

    <p>Imaginary lines drawn to represent the electric field due to a charge</p> Signup and view all the answers

    What is the definition of electric flux?

    <p>The total number of electric lines of force that normally pass through a surface</p> Signup and view all the answers

    What is Gauss's theorem related to?

    <p>The surface integral of the electric field intensity over any closed surface in free space</p> Signup and view all the answers

    What is the SI unit of electric flux?

    <p>N m^2 C^-1 or V m</p> Signup and view all the answers

    What does Gauss's law state about the electric field outside a uniformly charged thin spherical shell?

    <p>The electric field is inversely proportional to the square of the distance from the center of the shell</p> Signup and view all the answers

    What is the electric flux through a Gaussian surface inside a cavity with no charge present?

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

    What does Gauss's law state about the electric field at a point on the surface of a uniformly charged thin spherical shell?

    <p>The electric field is maximum at all points on the surface</p> Signup and view all the answers

    What is used as a Gaussian surface in Gauss's law when calculating the electric field due to a charge distribution?

    <p>A closed surface enclosing a net charge within it</p> Signup and view all the answers

    What does Gauss's law state about the electric field inside a cavity within a uniformly charged thin spherical shell?

    <p>The electric field is zero at all points within the cavity</p> Signup and view all the answers

    What does Gauss's theorem state about the relationship between the integral of electric field intensity over any closed surface and net charge enclosed within that surface?

    <p>The integral is equal to 1 / ε0 times the net charge enclosed within that surface</p> Signup and view all the answers

    What property can be used for electrostatic shielding according to Gauss's law?

    <p>Electric field inside a cavity being zero</p> Signup and view all the answers

    Study Notes

    Electric Charges at Rest

    • The study of electric charges at rest is known as electrostatics.

    Electric Influence

    • The property by virtue of which a particle produces electrical influence around it is its electric charge.

    Behavior of Like Charges

    • Like charges repel each other when they encounter each other.

    Coulomb's Law

    • According to Coulomb's law, the force between two point static charges decreases as the square of the distance between them increases.

    Electric Field Intensity

    • Electric field intensity at a point represents the force experienced by a unit positive charge at that point.

    Electric Lines of Force

    • Electric lines of force are imaginary lines that emerge from positive charges and enter negative charges.

    Electric Flux

    • Electric flux is the measure of the number of electric lines of force passing through a given area.
    • Electric flux is defined as the dot product of the electric field intensity and the area vector.

    Gauss's Theorem

    • Gauss's theorem is related to the distribution of electric flux through a closed surface.
    • The SI unit of electric flux is Nm²C⁻¹.

    Electric Field Outside a Uniformly Charged Spherical Shell

    • According to Gauss's law, the electric field outside a uniformly charged thin spherical shell is zero.

    Electric Flux Through a Gaussian Surface

    • The electric flux through a Gaussian surface inside a cavity with no charge present is zero.

    Electric Field at a Point on a Spherical Shell

    • According to Gauss's law, the electric field at a point on the surface of a uniformly charged thin spherical shell is perpendicular to the surface.

    Gaussian Surface

    • A spherical surface can be used as a Gaussian surface in Gauss's law when calculating the electric field due to a charge distribution.

    Electric Field Inside a Cavity

    • According to Gauss's law, the electric field inside a cavity within a uniformly charged thin spherical shell is zero.

    Gauss's Law

    • Gauss's theorem states that the integral of electric field intensity over any closed surface is proportional to the net charge enclosed within that surface.

    Electrostatic Shielding

    • Conductor shells can be used for electrostatic shielding according to Gauss's law.

    Studying That Suits You

    Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

    Quiz Team

    Description

    Test your knowledge of rotational dynamics, mechanical properties of fluids, thermodynamics, electromagnetism, and atomic structure concepts covered in Class XII Physics curriculum.

    More Like This

    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser