Question

Polystyrene has dielectric constant 2.6 and dielectric strength 2.0 ×× 1077 V/mV/m. A piece of polystyrene...

Polystyrene has dielectric constant 2.6 and dielectric strength 2.0 ×× 1077 V/mV/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 79 %% of the dielectric strength, what is the energy density of the stored energy?

B) When the capacitor is connected to a battery with voltage 500.0 VV, the electric field between the plates is 79 %% of the dielectric strength. What is the area of each plate if the capacitor stores 0.250 mJmJ of energy under these conditions?

Science   Physics   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Polystyrene has dielectric constant 2.6 and dielectric strength 2.0 × 107 V/m. A piece of polystyrene...
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. Part A When the electric field between the plates is 76 % of the dielectric strength, what is the energy density of the stored energy? Express your answer with the appropriate units. u = nothingnothing SubmitRequest Answer Part B When the capacitor is connected to a battery with voltage...
Consider a dielectric with a dielectric constant K = 2.6 and a dielectric strength of 2.0×107...
Consider a dielectric with a dielectric constant K = 2.6 and a dielectric strength of 2.0×107 Vm^(−1) . A piece of this dielectric is placed between the plates of a parallel plate capacitor, completely filling the volume between the plates. a. What is the energy density inside the capacitor when the electric field between the plates is 80% of the dielectric strength. b. When the capacitor is connected to a battery with a 500.0 V voltage, the electric field is...
If the electric field inside a capacitor exceeds the dielectric strength of the dielectric between its...
If the electric field inside a capacitor exceeds the dielectric strength of the dielectric between its plates, the dielectric will break down, discharging and ruining the capacitor. Thus, the dielectric strength is at the maximum magnitude that the electric field can have without breakdown occurring. The dielectric strength of air is 3.0x106 V/m and that of neoprene rubber is 1.2x107 V/m. A certain air gap parallel plate capacitor can store no more than 0.075 J of electrical energy before breaking...
A certain substance has a dielectric constant of 2.8 and a dielectric strength of 18 MV/m....
A certain substance has a dielectric constant of 2.8 and a dielectric strength of 18 MV/m. It is to be used in a parallel plate capacitor that has a capacitance of 7.0 10-2 microF and that can withstand a potential difference of 4.0 kV. What minimum dimensions (d & A) must the capacitor have?
Consider a parallel plate capacitor with plate dimensions of 10 cm x 10 cm and a...
Consider a parallel plate capacitor with plate dimensions of 10 cm x 10 cm and a gap spacing of 2.00 cm. The capacitor is connected to a battery supplying a voltage across the capacitor of 2.00 kV. After the capacitor is fully charged, the battery is disconnected. A dielectric material is then inserted into the vacuum space to completely fill the capacitor. This result in a decrease of the capacitor voltage to 1.00 kV. a.Find the vacuum electric field between...
The dielectric in a capacitor serves two purposes. It increases the capacitance, compared to an otherwise...
The dielectric in a capacitor serves two purposes. It increases the capacitance, compared to an otherwise identical capacitor with an air gap, and it increases the maximum potential difference the capacitor can support. If the electric field in a material is sufficiently strong, the material will suddenly become able to conduct, creating a spark. The critical field strength, at which breakdown occurs, is 3.0 MV/m for air, but 60 MV/m for Teflon. A parallel-plate capacitor consists of two square plates...
The dielectric in a capacitor serves two purposes. It increases the capacitance, compared to an otherwise...
The dielectric in a capacitor serves two purposes. It increases the capacitance, compared to an otherwise identical capacitor with an air gap, and it increases the maximum potential difference the capacitor can support. If the electric field in a material is sufficiently strong, the material will suddenly become able to conduct, creating a spark. The critical field strength, at which breakdown occurs, is 3.0 MV/m for air, but 60 MV/m for Teflon. A parallel-plate capacitor consists of two square plates...
Consider you have a square parallel-plate capacitor which has  6.00 cmcm  lenght on each side. The spearation between...
Consider you have a square parallel-plate capacitor which has  6.00 cmcm  lenght on each side. The spearation between parallel plates is  3.50 mmmm . You completely fill the capacitor with two different dielectric materials, each 6.00 cmcm on a side and 1.75 mmmm thick. Assume that one of the dielectric material is pyrex glass and the other is polystyrene. When the potential difference between the plates is 88.0 VV , how much electrical energy is stored in the capacitor?
a parallel plate capacitor is fully charged by a battery, and then the battery is disconnected....
a parallel plate capacitor is fully charged by a battery, and then the battery is disconnected. if a dielectric material is then inserted between the capacitor plates, which of the following quantities would remain constant? A) electric field between the plates B) potential difference across the plates C) charge on each plate D) energy stored in capacitor E) charge and energy would both remain constant
(numbers 38-40) An ideal parallel plate capacitor with a dielectric material between the plates is charged...
(numbers 38-40) An ideal parallel plate capacitor with a dielectric material between the plates is charged by connecting it to a battery. The battery remains attached while the dielectric is now removed. During this removal of the dielectric: 38. The charge on the capacitor __________. a) increases b) decreases c) remains the same d) more information is needed to determine 39. The energy stored in the capacitor __________. a) increases b) decreases c) remains the same d) more information is...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT