Question

The permeability and permittivity free space is unity. State true/false.

Answer 1

False

Answer 2

The statement "The permeability and permittivity free space is unity" is false.

The permeability of free space ($\mu_0$) and permittivity of free space ($\epsilon_0$) are fundamental physical constants. Their approximate values are:

• Permeability of free space, $\mu_0 = 4\pi \times 10^{-7} \text{ H/m} \approx 1.256 \times 10^{-6} \text{ H/m}$.
• Permittivity of free space, $\epsilon_0 = 8.854 \times 10^{-12} \text{ F/m}$.

Neither of these values is equal to unity (1). Therefore, the given statement is false.