H_{0} = \sqrt{\frac{ε_{0}}{μ_{0}}} E_{0} = 0, 0026 \times 1000 = 2, 6 A m^{- 1}

${H_0=\sqrt{ \frac{\varepsilon_0}{\mu_0 }} E_0 = 0,0026 \times 1000=2,6\, \mathrm{A m^{-1}}}$

Error