Question

The constant $k$ in Coulombs law depends on

• A. nature of medium
• B. system of units
• C. intensity of charge
• D. both (a) and (b)

Answer 1

Answer: (D)

both (a) and (b)

Answer 2

The value of $k=\frac{1}{4\pi\varepsilon_{0}}=9\times10^{9}\,Nm^{2}\,C^{-2}$ where $\varepsilon_{0}$ is permittivity of free space