Magnesium nanoferrites are gaining a lot of scientific attention because of its magnificent dielectric characteristics such as large dielectric constant with minute dielectric losses, which make it suitable for potential applications such as high frequency, microwave devices, switching devices, power, magnetic storage devices, and many more. A series of manganese- and silver-substituted magnesium nanoferrites with the chemical composition Mg_1−yMn_yAg_xFe_2−xO₄ (0.1 ≤ y ≤ 0.4, 0.0 ≤ x ≤ 0.3) were synthesized via sol–gel auto-combustion technique for reporting the electrical and dielectric study of synthesized specimens. In the present investigation, the dc resistivity (ρ) of prepared nanoferrites goes on decreasing as a function of Ag⁺ and Mn²⁺ concentrations extensively indicate its semi-conductor behavior. From the dielectric measurements, dielectric constant (∈′) increases with the increase in frequency, whereas the dielectric loss tangent (tan δ) shows an inverse behavior with the increasing frequency, respectively. In relation with the dielectric investigations, AC conductivity (σ_ac) shows similar behavior to that of dielectric constant. Therefore, such materials of high dielectric constant with minute dielectric losses make it suitable for the power application.

镁纳米铁氧体由于其出色的介电特性（例如大介电常数和微小介电损耗）而受到了广泛的科学关注，使其适合于潜在的应用，例如高频，微波设备，开关设备，电源，磁存储设备和还有很多。的化学成分的Mg一系列锰和银-取代的镁纳米铁氧体的_{1- ý}锰_ý银_X的Fe _{2- X} ø ₄（0.1≤  Ý  ≤0.4，0.0≤  X ≤0.3）是通过溶胶-凝胶自动燃烧技术合成的，用于报告合成样品的电学和介电研究。在本研究中，所制备的纳米铁氧体的直流电阻率（ρ）随Ag ⁺和Mn ²⁺浓度的函数而持续降低，这充分表明了其半导体性能。从介电测量，介电常数（∈'）随频率增大而增大，而介电损耗角正切（黄褐色δ）示出了具有增加的频率，分别逆行为。在与介质的调查关系，AC电导率（σ_交流）显示出与介电常数相似的行为。因此，这种具有高介电常数且具有微小介电损耗的材料使其适合于电源应用。