Explore about thermal conductivity learn how to derive its equation Know about its units and dimensions. The force of viscosity on a small sphere moving through a viscous fluid is given by. Where L is the axial distance along the cylinder and r 1 and r 2 are as shown in the figure.
Lets read the derivation of impedance to calculate the dimensional formula of impedance.
R A R S where A is area of cross section R is the resistance and S is the length of the conductor Conductivity is the reciprocal of resistivity and hence s S AR SA has the dimension L. The force of viscosity on a small sphere moving through a viscous fluid is given by. This law states that the current density vector vec J J for some materials is parallel to the electrical field vec E E therefore. Thermal resistance can also be used for other conduction geometries as long as they can be analyzed as one-dimensional.