Quick Launch. The Navy Individual Ready Reserve (IRR) is a force that consists of personnel who must fulfill their MSO under 10 U.S.C., 651, members fulfilling a service obligation incurred via contract, and those who have fulfilled their MSO but voluntarily remain in the IRR.
Electrical resistivity is the reciprocal of conductivity. It is the is the opposition of a body or substance to the flow of electrical current through it, resulting in a change of electrical energy into heat, light, or other forms of energy. The amount of resistance depends on the type of material.
Resistivity Calculation. The electrical resistance of a wire would be expected to be greater for a longer wire, less for a wire of larger cross sectional area, and would be expected to depend upon the material out of which the wire is made (resistivity).