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12th Class Physics Chapter 12 MCQs with Answers

12th Class Physics Chapter 12 MCQs

Master Electrostatics with 12th Class Physics Chapter 12 MCQs. Cover electric fields, potential, and capacitance with trending keywords like electrostatics quiz, physics MCQs, and electric charge test for superior preparation.

What is the fundamental unit of charge?
a) Electron
b) Neutron
c) Proton
d) Ion

Answer
c) Proton

An object becomes positively charged when it:
a) Gains protons
b) Gains electrons
c) Loses protons
d) Loses electrons

Answer
b) Gains electrons

The force between two charged particles is directly proportional to the:
a) Magnitude of the charges
b) Distance between the charges
c) Product of the charges
d) Square of the charges

Answer
c) Product of the charges

The SI unit of electric charge is:
a) Coulomb
b) Ampere
c) Volt
d) Ohm

Answer
a) Coulomb

The process of transferring charge between objects by touching is called:
a) Induction
b) Conduction
c) Polarization
d) Dispersion

Answer
b) Conduction

The movement of electrons in a conductor in response to an applied electric field is called:
a) Polarization
b) Induction
c) Current
d) Displacement

Answer
c) Current

The force experienced by a charged particle in an electric field is given by:
a) F = ma
b) F = mg
c) F = qE
d) F = mv^2/r

Answer
c) F = qE

The process of redistributing the charges on an object due to the influence of a nearby charged object is called:
a) Induction
b) Conduction
c) Polarization
d) Dispersion

Answer
a) Induction

Coulomb’s law describes the force between two charged objects and is similar to:
a) Newton’s law of motion
b) Ohm’s law
c) Hooke’s law
d) Kepler’s law

Answer
c) Hooke’s law

The electric field lines point away from:
a) Negative charges
b) Positive charges
c) Neutral charges
d) Uncharged objects

Answer
b) Positive charges

The process of attracting and repelling objects without direct contact is known as:
a) Conduction
b) Polarization
c) Induction
d) Electrification

Answer
d) Electrification

Which of the following materials is a good insulator?
a) Copper
b) Aluminum
c) Rubber
d) Silver

Answer
c) Rubber

The property of a material that determines how strongly it will be affected by an electric field is called:
a) Electric potential
b) Electric charge
c) Electric polarization
d) Electric susceptibility

Answer
d) Electric susceptibility

What happens to the electrostatic force between two charges when the distance between them is doubled?
a) It becomes half
b) It becomes one-fourth
c) It remains the same
d) It doubles

Answer
b) It becomes one-fourth

The process of separating the charges within an object due to the influence of a nearby charged object is called:
a) Induction
b) Conduction
c) Polarization
d) Dispersion

Answer
c) Polarization

An object becomes negatively charged when it:
a) Gains protons
b) Gains electrons
c) Loses protons
d) Loses electrons

Answer
d) Loses electrons

The electric field lines inside a charged conductor are:
a) Straight lines
b) Circular lines
c) Elliptical lines
d) Absent

Answer
d) Absent

Which of the following statements is true regarding electric field lines?
a) They always form closed loops
b) They always start from negative charges and end on positive charges
c) They never cross each other
d) All of the above

Answer
d) All of the above

The process of transferring charge between objects without direct contact is called:
a) Induction
b) Conduction
c) Polarization
d) Dispersion

Answer
a) Induction

An electric field is produced by:
a) Moving charges only
b) Stationary charges only
c) Both moving and stationary charges
d) Magnetic fields

Answer
c) Both moving and stationary charges

The property of a material that prevents the flow of electric charges is called:
a) Electric potential
b) Electric charge
c) Electric polarization
d) Electric resistance

Answer
d) Electric resistance

What is the net charge of an uncharged object?
a) Positive
b) Negative
c) Neutral
d) Can be positive or negative

Answer
c) Neutral

The electric field lines point towards:
a) Negative charges
b) Positive charges
c) Neutral charges
d) Uncharged objects

Answer
a) Negative charges

The process of attracting and repelling objects through direct contact is known as:
a) Conduction
b) Polarization
c) Induction
d) Electrification

Answer
a) Conduction

Which of the following materials is a good conductor?
a) Glass
b) Wood
c) Plastic
d) Copper

Answer
d) Copper

Which of the following statements about electric field lines is correct?
a) They always intersect each other.
b) They point from positive to negative charges.
c) They point from negative to positive charges.
d) They are confined within a conductor.

Answer
b) They point from positive to negative charges.

What happens to the electrostatic force between two charges when the distance between them is halved?
a) It becomes half
b) It becomes one-fourth
c) It remains the same
d) It doubles

Answer
d) It doubles

The electric field inside a charged conductor is:
a) Zero
b) Uniform
c) Variable
d) Parallel to the surface

Answer
a) Zero

Which of the following materials is a good insulator?
a) Aluminum
b) Copper
c) Glass
d) Silver

Answer
c) Glass

Which of the following statements is true regarding electric field lines?
a) They always form closed loops
b) They always start from negative charges and end on positive charges
c) They never cross each other
d) All of the above

Answer
d) All of the above

The process of redistributing the charges on an object due to the influence of a nearby charged object is called:
a) Induction
b) Conduction
c) Polarization
d) Dispersion

Answer
a) Induction

Coulomb’s law describes the force between two charged objects and is similar to:
a) Newton’s law of motion
b) Ohm’s law
c) Hooke’s law
d) Kepler’s law

Answer
c) Hooke’s law

What happens to the electrostatic force between two charges when the distance between them is doubled?
a) It becomes half
b) It becomes one-fourth
c) It remains the same
d) It doubles

Answer
b) It becomes one-fourth

An object becomes negatively charged when it:
a) Gains protons
b) Gains electrons
c) Loses protons
d) Loses electrons

Answer
d) Loses electrons

The electric field lines inside a charged conductor are:
a) Straight lines
b) Circular lines
c) Elliptical lines
d) Absent

Answer
d) Absent

Which of the following statements is true regarding electric field lines?
a) They always form closed loops
b) They always start from negative charges and end on positive charges
c) They never cross each other
d) All of the above

Answer
d) All of the above

The process of transferring charge between objects without direct contact is called:
a) Induction
b) Conduction
c) Polarization
d) Dispersion

Answer
a) Induction

An electric field is produced by:
a) Moving charges only
b) Stationary charges only
c) Both moving and stationary charges
d) Magnetic fields

Answer
c) Both moving and stationary charges

The property of a material that prevents the flow of electric charges is called:
a) Electric potential
b) Electric charge
c) Electric polarization
d) Electric resistance

Answer
d) Electric resistance

What is the net charge of an uncharged object?
a) Positive
b) Negative
c) Neutral
d) Can be positive or negative

Answer
c) Neutral

The electric field lines point towards:
a) Negative charges
b) Positive charges
c) Neutral charges
d) Uncharged objects

Answer
a) Negative charges

The process of attracting and repelling objects through direct contact is known as:
a) Conduction
b) Polarization
c) Induction
d) Electrification

Answer
a) Conduction

Which of the following materials is a good conductor?
a) Glass
b) Wood
c) Plastic
d) Copper

Answer
d) Copper

Which of the following statements about electric field lines is correct?
a) They always intersect each other.
b) They point from positive to negative charges.
c) They point from negative to positive charges.
d) They are confined within a conductor.

Answer
b) They point from positive to negative charges.

What happens to the electrostatic force between two charges when the distance between them is halved?
a) It becomes half
b) It becomes one-fourth
c) It remains the same
d) It doubles

Answer
d) It doubles

The electric field inside a charged conductor is:
a) Zero
b) Uniform
c) Variable
d) Parallel to the surface

Answer
a) Zero

Which of the following materials is a good insulator?
a) Aluminum
b) Copper
c) Glass
d) Silver

Answer
c) Glass

Which of the following statements is true regarding electric field lines?
a) They always form closed loops
b) They always start from negative charges and end on positive charges
c) They never cross each other
d) All of the above

Answer
d) All of the above

The process of redistributing the charges on an object due to the influence of a nearby charged object is called:
a) Induction
b) Conduction
c) Polarization
d) Dispersion

Answer
a) Induction

Coulomb’s law describes the force between two charged objects and is similar to:
a) Newton’s law of motion
b) Ohm’s law
c) Hooke’s law
d) Kepler’s law

Answer
c) Hooke’s law

What happens to the electrostatic force between two charges when the distance between them is doubled?
a) It becomes half
b) It becomes one-fourth
c) It remains the same
d) It doubles

Answer
b) It becomes one-fourth

An object becomes negatively charged when it:
a) Gains protons
b) Gains electrons
c) Loses protons
d) Loses electrons

Answer
d) Loses electrons

The electric field lines inside a charged conductor are:
a) Straight lines
b) Circular lines
c) Elliptical lines
d) Absent

Answer
d) Absent

Which of the following statements is true regarding electric field lines?
a) They always form closed loops
b) They always start from negative charges and end on positive charges
c) They never cross each other
d) All of the above

Answer
d) All of the above

The process of transferring charge between objects without direct contact is called:
a) Induction
b) Conduction
c) Polarization
d) Dispersion

Answer
a) Induction

An electric field is produced by:
a) Moving charges only
b) Stationary charges only
c) Both moving and stationary charges
d) Magnetic fields

Answer
c) Both moving and stationary charges

The property of a material that prevents the flow of electric charges is called:
a) Electric potential
b) Electric charge
c) Electric polarization
d) Electric resistance

Answer
d) Electric resistance

What is the net charge of an uncharged object?
a) Positive
b) Negative
c) Neutral
d) Can be positive or negative

Answer
c) Neutral

The electric field lines point towards:
a) Negative charges
b) Positive charges
c) Neutral charges
d) Uncharged objects

Answer
a) Negative charges

The process of attracting and repelling objects through direct contact is known as:
a) Conduction
b) Polarization
c) Induction
d) Electrification

Answer
a) Conduction

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