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Class 12 Physics: Electric Charges and Fields Quiz

6 Questions

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Class 12 Physics: Electric Charges and Fields Quiz

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Questions and Answers

Which of the following statements about electric field lines is correct?

Electric field lines start on negative charges and end on positive charges.

Electric field lines do not have any specific direction.

Electric field lines start on positive charges and end on negative charges. (correct)

Electric field lines only exist around conductors.

What is the SI unit of electric charge?

Coulomb (correct)

Ohm

Volt

Ampere

What happens to the electric field between two parallel plates when the distance between them is increased?

The electric field becomes zero

The electric field weakens (correct)

The electric field remains constant

The electric field strengthens

What happens to the electric field inside a conductor in electrostatic equilibrium?

The electric field is zero throughout the conductor Signup and view all the answers

What is the relationship between electric field intensity and distance from a point charge?

The electric field intensity is inversely proportional to the square of the distance from the point charge Signup and view all the answers

What does Gauss's law state about the net electric flux through any closed surface?

The net electric flux through any closed surface is equal to the total charge enclosed by that surface divided by the permittivity of free space Signup and view all the answers

Study Notes

Electric Field and Charge

Electric field lines are a way to visualize the electric field around a charge or a distribution of charges.

Units of Electric Charge

The SI unit of electric charge is the Coulomb (C).

Electric Field Between Parallel Plates

When the distance between two parallel plates is increased, the electric field between them decreases.

Electric Field Inside a Conductor

In electrostatic equilibrium, the electric field inside a conductor is zero.

Electric Field Intensity and Distance

The electric field intensity (E) is inversely proportional to the square of the distance (r) from a point charge, i.e., E ∝ 1/r².

Gauss's Law

Gauss's law states that the net electric flux (Φ) through any closed surface is proportional to the total charge (Q) enclosed within the surface, i.e., Φ ∝ Q.

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Description

Test your knowledge of electric charges and fields with this quiz containing 1000 questions designed for class 12 students. Challenge yourself with a wide range of topics including Coulomb's law, electric field, electric potential, and more.