📘 electromagnetism

1. **Problem statement:** We are given a uniform surface charge density $\sigma = 6$ kC/m$^2$ on a semi-infinite metal strip and asked to find the electric field density at a two-a

1. **Problem statement:** We have two vertical parallel lines, each of length $L=6.00\ \text{cm}=0.06\ \text{m}$, separated by a distance $d=6.00\ \text{cm}=0.06\ \text{m}$. They c

1. The term $\frac{\partial \rho_V}{\partial t}$ represents the rate of change of the volume charge density $\rho_V$ at a point with respect to time. This means statement (a) is co