6. What is the dimension of volume charge density? a) [MLAT-2] b) [M0 L-3 A T] c) [M L-3 A T] d) [M L-2 A T]
Answer: b Explanation: Volume charge density = chargevolume=current∗timevolume=A∗TL3=[M0 A T L-3]. But in case of surface charge density, the dimension will be [M0 L-2 A T] because surface charge density means an electric charge in a unit area of the surface.