Electricity and Magnetism Quiz

Which subatomic particle has a negative charge?

• Proton

• Neutron

• Electron

• Atom

What determines the electric and magnetic interactions between subatomic particles?

• Electric field

• Electrostatic force

• Electric charge

• Conductivity

Which of the following is the unit of electric charge?

• Ampere

• Coulomb

• Ohm

• Joule

What happens when an atom has more protons than electrons?

• It becomes an anion

• It becomes a cation

• It remains neutral

• It loses all charge

Which material allows electrical charges to move freely?

• Insulator

• Conductor

• Semiconductor

• Dielectric

What charging method involves direct contact between a charged and neutral object?

• Conduction

• Induction

• Polarization

• Ionization

Charging by induction is considered:

• Permanent

• Temporary

• Destructive

• None of the above

Who formulated Coulomb’s law?

• Nikola Tesla

• Charles-Augustin de Coulomb

• Georg Ohm

• Michael Faraday

The electrostatic force between two charges is directly proportional to:

• The square of the distance between them

• The product of their charges

• The electric field strength

• The resistance of the medium

The charge from which an electric field originates is called:

• Test charge

• Induced charge

• Source charge

• Free charge