Seven rods AB, BC, CD, DE, EF, FG and GH are uniformly charged. The electric field produced by each rod at the centre of the cube has magnitude E. If the magnitude of the net electric field is Eₙₑₜ = nE, find n.
Seven rods AB, BC, CD, DE, EF, FG and GH are uniformly charged. The electric field produced by each rod at the centre of the cube has magnitude E. If the magnitude of the net electric field is Eₙₑₜ = nE, find n.