Physics, 21.02.2020 19:10 iready57

Polystyrene has dielectric constant 2.6 and dielectric strength 2.0 × 107 V/m . A piece of polystyrene is used as a dielectric in a parallel-plate capacitor, filling the volume between the plates.

a- When the electric field between the plates is 77 % of the dielectric strength, what is the energy density of the stored energy?

Express your answer with the appropriate units

b- When the capacitor is connected to a battery with voltage 500.0 V , the electric field between the plates is 77 % of the dielectric strength. What is the area of each plate if the capacitor stores 0.25 mJ of energy under these conditions?

Express your answer with the appropriate units

Answers: 1

Show answers

Other questions on the subject: Physics

Physics, 21.06.2019 17:00, nayo2006

After a car's engine has been running for a while, if you stand near the car's engine you can often feel heat coming from the engine as a result of a. radiation b. convection c. conduction

Answers: 1

continue

Physics, 21.06.2019 19:30, nayashuntel

Asample of a gaseous substance changes into a liquid

Answers: 1

continue

Physics, 22.06.2019 02:30, bellamore

Awave travels at a speed of 5.2 m/s. if the distance between crests is 0.40 m, what is the frequency of the wave? use f=v/wavelength a. 13 hz b. 2.1 hz c. 0.077 hz d. 5.6 hz

Answers: 1

continue

Physics, 22.06.2019 17:30, joejoefofana

Atruck driver is attempting to deliver some furniture. first, he travels 8 km east, and then he turns around and travels 3 km west. finally, he turns again and travels 13 km to his destination. what is the drivers distance

Answers: 3

continue

You know the right answer?

Polystyrene has dielectric constant 2.6 and dielectric strength 2.0 × 107 V/m . A piece of polystyre...