question_answer 35)

      Show that the magnetic field B at a point in between the plates of a parallel-plate capacitor during charging is  (symbols having usual meanings).                                                

Answer:

                  Let  be the displacement current in the region between two plates of parallel plate capacitor. Fig. 5(EP).2. The magnetic field induction at a point in a region between two plates of capacitor at a - distance r from the axis of plates is