What are the units of permittivity of fr

CUET Preparation Today

Start Free Mocks

Home Questions SBAUTNE44R

Target Exam

CUET

Subject

Physics

Chapter

Electric Charges and Fields

Question:

What are the units of permittivity of free space?

Options:

N^-1 m^-2 C²

N m^-2 C²

N^-1 m^-2 C

N^-1 m^-1 C²

Correct Answer:

N^-1 m^-2 C²

Explanation:

k = 1/4πε_o

units of k : N m² C^-2

Thus, the unit of permittivity will be reciprocal of these units.