The Physics Society of Iran Iranian Journal of Physics Research 1682-6957 4 2 2019 11 26 Calculation of the torque exerted on a narrow slab of a nematic liquid crystal in a high magnetic field Calculation of the torque exerted on a narrow slab of a nematic liquid crystal in a high magnetic field 117 124 586 FA M. A. Shahzamanian M. Ghafari Journal Article 2019 11 26   In this paper t he hydrodynamic equations for a narrow slab when the state of nematic liquid crystal is deformed slightly by a high magnetic field are solved. Then the components of velocities and the torque exerted on the torsional oscillator in which the slab is contained are calculated, and the changes in the resonant frequency are determined.   In this paper t he hydrodynamic equations for a narrow slab when the state of nematic liquid crystal is deformed slightly by a high magnetic field are solved. Then the components of velocities and the torque exerted on the torsional oscillator in which the slab is contained are calculated, and the changes in the resonant frequency are determined. https://ijpr.iut.ac.ir/article_586_605ff764c617d3cd28dbbdd72be8f9a2.pdf