Multiferroics　composite　materials　have　been　widely　used　in　several　applications,　such　as　ceramic　supercapacitors　and　multifunctional　and　active　devices,　owing　to　their　high　permittivity　with　ferroelectric　and　magnetic　performance　even　at　room　temperature.　The　chosen　preparation　technique　can　be　one　of　the　most　effective　ways　for　obtaining　multiferroic　composite　with　different　properties　for　the　same　composite.　Here,　multiferroic　composite　materials,　(x)　wt.%　Ni0.5Zn0.5Fe2O4　(NZF)-(100-x)　wt.%　BaTiO3　(BT)　(x　=　25,　50,　75)　were　prepared　by　the　co-precipitation　synthesis　route.　The　prepared　multiferroic　samples　were　characterized　with　various　techniques　like　X-ray　diffraction　(XRD),　scanning　electron　microscope　(SEM),　energy　dispersive　X-ray　spectroscopy　(EDXS),　and　vibrating　sample　magnetometer　(VSM).　The　magnetic　and　AC　electrical　properties　like　conductivity,　dielectric　constant,　dissipation　factor　(dielectric　loss),　and　impedance　spectroscopy　analysis　were　studied　in　detail　with　different　frequencies　and　temperatures.　In　our　case,　preparing　nanosized　NZF　on　or　between　microscale　BT　could　enhance　the　electrical　properties　by　decreasing　the　porosity　(P)　percentage,　which　reaches　a　low　value　for　the　sample　x　=　50　wt%,　and　increasing　the　conductivity.　A　relatively　high　dielectric　constant　(Ε‘)　at　low　frequencies　and　high　temperatures　was　obtained,　which　is　one　of　the　main　contributions　in　modern　applications　like　a　ceramic　supercapacitor.　Also,　the　studied　samples　show　low　dielectric　loss　(tanδ)　values　suggesting　that　it　could　be　a　contender　for　use　in　high-frequency　microwave　devices　and　tunable　frequency　filters.　©　2022　Elsevier　B.V.