A Plane Parallel Plate Capacitor Has Air Between Plates and Disc

question 57

Multiple Choice

A plane parallel plate capacitor has air between plates and disc shaped plates of radius 3.0 mm that are coaxial and 2.5 mm apart.Charge is being accumulated on the plates of the capacitor.What is the displacement current between the plates at an instant when the time rate of charge accumulation on the plates is 1.5 $\mu$ C/s?

• A)1.0 * 10^-6 A
• B)1.5 * 10^-6 A
• C)2.0 * 10^-6 A
• D)2.5 * 10^-6 A
• E)3.0 * 10^-6 A