A non conducting infinite rod is placed along the z axis the

Last updated: 6/9/2023

A non conducting infinite rod is placed along the z axis the upper half of the rod lying along z 0 is charged positively with a uniform linear charge density while the lower half z 0 is charged negatively with a uniform linear charge density The origin is located at the junction of the positive and negative halves of the rod A uniformly charged annular disc surface charge density o of inner radius R and outer radius 2R is placed in the x y plane with its centre of the origin The force on the rod due to the disc is 20 R Eo A B GAR 280 C GAR Eo D o R 380