In this letter, we have demonstrated a simple method to evaluate the resistivity and relative permittivity of a lossy medium. The method comprises two parts: the first one is to measure the frequency characteristic of impedance between two parallel electrodes having a lossy medium inside, and the second one is to calculate the resistivity and relative permittivity of the medium, in terms of the resistance and capacitance between the electrodes, from the measured frequency characteristic of impedance.
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