Question

Which of the following best defines linear charge density?

Options

• The charge per unit area on a surface

• The charge per unit length along a line

• The total charge distributed uniformly across a conductor

• The charge per unit volume in a region of space

Answer 1

Linear charge density (λ) is defined as the charge per unit length along a line such as a wire or rod. It is expressed as λ = ΔQ/Δl, where ΔQ is the charge distributed over a small length Δl.