Answer:
Explanation:
Use the concept of Capacitance of a capacitor with dielectric to solve this problem.
The magnitude of the charge per unit area on the conducting plate is calculated using the expression of charge density.
The magnitude of charge per unit area on the surface of dielectric plate is calculated using the charge density of conducting plate.
The total electric - field energy stored in the capacitor is calculated using the expression for energy stored in the capacitor.
Fundamentals
The expression of charge per unit area on the conducting plate is,
E6 = kEo
Where 6 = magnitude of charge per unit area
E = magnitude of electric feild
Eo= permittivity of free space = 8.854×10^-12
K = dielectric constant
Charge density = 8.854 ×10^-12) × 3.60 × (1.2×10^6)
Magnitude of charge per unit area = 3.82 ×10^-5C^2/Nm^2
