Electrostatics Quiz

What is the unit of charge in the SI system?

• Volt

• Coulomb (C)

• Statcoulomb

• Ampere

According to Coulomb's Law, the electrostatic force between two point charges is inversely proportional to what?

• The sum of the charges

• The square of the distance between them

• The product of the charges

• The distance between them

What happens to a body when it loses electrons?

• It gains mass

• It becomes positively charged

• It remains neutral

• It becomes negatively charged

What is the dielectric constant also known as?

• Charge density

• Electric potential

• Electric field strength

• Relative permittivity

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

• E = F / q

• E = q / (4πε0r^2)

• E = V / d

• E = k * q / r^2

What is the nature of electric charge?

• Scalar quantity

• None of the above

• Vector quantity

• Both vector and scalar

What is the electrostatic potential energy of a two-charge system?

• U = q1 * q2 / (4πε0 * r12)

• U = q1 + q2

• U = q1 * q2 * r

• U = 0

What is the relationship between electric field and potential difference?

• E = V/r

• E = V^2

• E = dV/dr

• E = -dV/dr

What is the property of electric lines of force?

• They are always circular

• They indicate the direction of the electric field

• They are always straight lines

• They can cross each other

What is the charge distribution called when it is spread over a surface?

• Volume charge density

• Surface charge density

• Linear charge density

• Point charge