A voltage is used to charge a circular parallel plate capacitor. The electric field is given by (image) where Q(t)=3Csin(t), and R is the radius

A voltage is used to charge a circular parallel plate capacitor. The electric field is given by (image) where Q(t)=3Csin(ωt), and R is the radius of the capacitor. Find the magnetic field vector inside the plates at a distance r from the center of the capacitors, with r.
 

Se utiliza un voltaje para cargar un capacitor de placas paralelas circulares. El campo elctrico est Q(t) dado por = i, donde Q(t) = 3C sin (wt), y R es el radio del capacitor. Encuentre el vector campo magntico dentro de las placas a una distancia r del centro de los capacitores, con r. E d.