A capacitor consists of two parallel plates, each with an area of 17.0 cm2 , separated by a distance of 0.150 cm . The material that fills the volume between the plates has a dielectric constant of 4.00. The plates of the capacitor are connected to a 400 V battery.

Part A

What is the capacitance of the capacitor?

C = F

Part B

What is the charge on either plate?

Q = C

Part C

How much energy is stored in the charged capacitor?

U = J

a) , b) , c)

Explanation:

a) The capacitance of two parallel plates capacitor with dielectric is given by the following expression:

Where:

- Dielectric constant.

- Vaccum permitivity.

- Plate area.

- Distance between plates.

Hence, the capacitance of the system is:

b) The charge can be found by using the definition of capacitance:

c) The energy stored in the charged capacitor is:

lol

explanation:

the total distance that martina travels that day is

(distance from home to mom's office) plus (distance from mom's office to school)

plus (distance from school to library) plus (distance from library to friend's house)

plus (distance from friend's house to martina's house).

(we don't know what any of these distance actually is.)