Practice portal › Electric Charge and Properties › Field of Spheres, Shells and Cylinders

Which of the following is a unit of volume charge density?

Asked in GSEB Board July 2023 · Non-uniform charge density

Answer: (2) C m⁻³

Step-by-step solution

Idea: volume charge density is the charge per unit volume.

ρ=(Δ q)/(Δ V)

Charge is in coulomb and volume in cubic metre, so the unit is C/(m³)=C m⁻³.

For comparison, σ (per area) is in C m⁻² and λ (per length) is in C m⁻¹.

So the unit of volume charge density is C m⁻³.

Why the other options are wrong

More Field of Spheres, Shells and Cylinders questionsAll Field of Spheres, Shells and Cylinders questions →

Reading this solution needs no sign-in. You only sign in to practise against the clock and keep your progress.

Practise this with a timer