Answer:
i) - (b) displacement current but no conduction current
ii) - (a) an electric field but no magnetic field
Explanation:
i) In a capacitor there is no a conductor between the parallel plates, hence, there is no conduction current. However, there is, in fact, a displacement current which does not need of conductor.
(b) displacement current but no conduction current
ii) Due to the capacitor is discharging, the electric field between the plates is varying. Due to this change in the magnitude of the electric field between the plates, the electric flux between the plates is changing. This variation in the electric flux generates a magnetic field. This explanation can be noticed in the fourth Maxwell equation:
[tex]\bigtriangledown \ X\ B=\frac{J}{\epsilon_o c^2}+\frac{1}{c^2}\frac{\partial E}{\partial t}=\frac{1}{c^2}\frac{\partial E}{\partial t}[/tex]
where J=0.
(a) an electric field but no magnetic field
