Q.State the units of linear charge density.

[!TLDR] Linear charge density $\lambda=q/l$ has SI unit coulomb per metre (C/m). …

Linear charge density is defined as charge per unit length, $\lambda=q/l$ (section 10.10.1), where q is measured in coulombs (C) and l is measured in metres (m). Dividing these units directly gives the SI unit of linear charge density as coulomb per metre, written C/m or $\text{C}\,\text{m}^{-1}$. (For comparison, surface charge density $\sigma=q/A$ carries the unit $\text{C/m}^2$, and volume charge density $\rho=q/V$ carries the unit …

Derive the unit directly from the defining formula $\lambda=q/l$, dividing the SI unit of c …

Confusing linear charge density's unit (C/m) with surface charge density's unit ($\text{C/m}^2$) or vo …