Physics - Current Electricity Question with Solution | TestHub

Key Idea Apply Kirchhoff' second law also called loop rule. The algebraic sum of the changes in potential in complete transversal of a mesh (closed loop) is zero. $ie,\Sigma \mathrm{V}=0$ Here ${\epsilon }_1-\left(i_1+i_2\right)R-i_1{r}_1=0$ If there are $n$ meshes in a circuit, the number of independent equations in accordance with loop law will be $(n-1)$.