A parallet plate capacitor of area of 2.0 mathrm(~m)^2 and relative permituity of 7 is charged to a pd of 240 mathrm(~V) . Calculate the capacitance and energy stored in the capacitor of plate ceparation (d) of 0.0004(C=30.9 mathrm(MF), E=0.809 mathrm(~g))

To calculate the capacitance of a parallel plate capacitor, we can use the formula: where:- is the capacitance,- is the relative permittivity,- is the area of the plates, and- is the separation between the plates.Given that the area of the plates is , the relative permittivity is 7, and the separation between the plates is , we can substitute these values into the formula: So, the capacitance of the capacitor is or .To calculate the energy stored in the capacitor, we can use the formula: where:- is the energy stored,- is the capacitance, and- is the voltage across the capacitor.Given that the capacitance is and the voltage across the capacitor is , we can substitute these values into the formula: So, the energy stored in the capacitor is or .