Two very thick equally-magmetized square plates of side 0.23m and of mass 20 g, are hung by threads 20.0 cm long from a common point.

Two very thick equally-magmetized square plates of side 0.23m and of mass 20 g, are hung by threads 20.0 cm long from a common point. The plates repel and detect from each other through a very small angle. Calculate the B field between the two plates, if the distance between them is 0.123 cm?

the angle made by the thread with vertical is sin-1(0.0615/20) = 0.1762 degreee. let T be the tension inthe thread. the weight of the plate is balance by component of tension; so 0.23*9.8 =...