EVERYDAY SCIENCE

Detailed explanation-1: -Resistivity refers to the ability of substances to resist current flow. Good conductors have low resistivity and insulators have high resistivity.

Detailed explanation-2: -Resistance is property of conductor which oppose the flow of current.

Detailed explanation-3: -Resistance is the opposition that a substance offers to the flow of electric current. It is represented by the uppercase letter R.

Detailed explanation-4: -Resistance is opposition to the flow of charges in a material. As electrons move through a conducting wire, they collide with electrons and ions. These collisions convert some kinetic energy into thermal energy, and the current is reduced. The SI unit of resistance is the ohm.

Detailed explanation-5: -Conductance in electricity is considered the opposite of resistance (R). Resistance is essentially the amount of friction a component presents to the flow of current. It’s a reciprocal relationship between conductance and resistance and is expressed through the following equations: R = 1/G, G = 1/R.