Displacement Current

Two circular plates of radius 0.1 m are used to from a parallel plate capacitor. If displacement current between the plates is 2pi .ampere, then find m agnetic filed produced by displacement current 4 cm from the axis of the plates.

A variable frequency a.c. source is connected only to a parallel plate capacitor. What is the effect on the displacment current (I_D) , if the frequency is decreased?

WORKDONE ON DISPLACEMENT OF CURRENT LOOP|AMPERES FORCE ON JUMPER