1What is the SI unit of electric charge?
Coulomb (C)
2What is the charge of a single electron?
C
3What is the charge of a single proton?
C
4What law states that like charges repel and unlike charges attract?
Coulomb's law
5What is the formula for Coulomb’s law?
6What is the value of Coulomb’s constant () in vacuum?
7What is an electric field?
A region around a charged object where another charge experiences a force
8What is the formula for electric field intensity ()?
9What is the electric field due to a point charge?
10What is the direction of the electric field due to a positive charge?
Radially outward
11What is the direction of the electric field due to a negative charge?
Radially inward
12What is the unit of electric field?
Newton per Coulomb (N/C) or Volt per meter (V/m)
13What is electric flux?
The total number of electric field lines passing through a given surface
14What is the SI unit of electric flux?
Volt-meter (Vm)
15What is Gauss's law?
The total electric flux through a closed surface is equal to
16What is the formula for Gauss's law?
17What is the value of the permittivity of free space ()?
18What is a conductor in electrostatics?
A material that allows free movement of charge
19What is an insulator in electrostatics?
A material that does not allow free movement of charge
20What is the principle of superposition of electric fields?
The net electric field at a point is the vector sum of all individual fields acting at that point