Dielectric constant (ε’) and loss factor (ε”) of benzonitrile in dilute solution benzene medium at room temperature and at 10.15 GHz frequency. Have been determined experimentally by using Smyth’s method. Gopala Krishna single frequency concentration method based Debye equation has been utilized to analyze the dielectric data (ε’ and ε”) to obtain relaxation time (τ) electric dipole moment (μ) are utilized to explore the molecular structure .The values relaxation time (τ) electric dipole moment (μ) are obtained in this investigation are encouraging by in agreement with literature values.
