Coulomb's Law

If required to calculate the force exerted onto charge C by charge D, what would be the appropriate force?

What is the unit of measurement for any force?

There exist two vectors (rp - r) while calculating any electric field intensity due to a point charge, what do they refer to?

In order to calculate the electric field intensity due to finite line charge, the angle "alpha1" stands for ...

• the angle at the higher value of the line (outside)

• the angle at the higher value of the line (inside)

• the angle at the lower value of the line (outside)

• the angle at the lower value of the line (inside)

In order to calculate the electric field intensity due to finite line charge, the angle "alpha2" stands for ...

• the angle at the higher value of the line (outside)

• the angle at the higher value of the line (inside)

• the angle at the lower value of the line (outside)

• the angle at the lower value of the line (inside)

In order to calculate the electric field intensity due to finite line charge, the vector "a_n" stands for

• perpendicular

• parallel

• normal

What is the unit of measurement for any electric field intensity?

What is the difference between electric field intensity and electric field density?

• a constant named permittivity

• a constant named permeability

• both are correct

What is the unit of measurement for any electric field density?