Question

What material is electrical resistance?

Answer 1

1. A force that opposes the flow of current is electrical resistance.
2. It acts as a gauge for the difficulty of current flow in this way. Ohms $\left(\Omega \right)$ is a unit used to express resistance values.
3. Mathematically, $\mathrm{R}=\mathrm{\rho }\frac{\mathrm{L}}{\mathrm{A}}\mathrm{where}\mathrm{\rho }\mathrm{is}\mathrm{resistivity},\mathrm{L}\mathrm{is}\mathrm{length},\mathrm{A}\mathrm{is}\mathrm{cross}\mathrm{sectional}\mathrm{area}$