Question

A capacitor of capacitance C with a vacuum between the plates is connected to a source...

A capacitor of capacitance C with a vacuum between the plates is connected to a source of potential difference ΔV. Assume ΔV>0.

A) The capacitor is then disconnected from the potential difference source and you fill it with a dielectric that has a dielectric constant κ. What is the new charge on the plates?

Express your answer in terms of some or all of the variables C, κ, and ΔV.

B) What is the new energy stored by the capacitor?

Express your answer in terms of some or all of the variables C, κ, and ΔV.

0 0
Add a comment Improve this question Transcribed image text
Know the answer?
Add Answer to:
A capacitor of capacitance C with a vacuum between the plates is connected to a source...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions
  • Review Constants A capacitor of capacitance C with a vacuum between the plates is connected to...

    Review Constants A capacitor of capacitance C with a vacuum between the plates is connected to a source of potential difference AV. Assume AV >0. Part B Write an expression for the total energy stored by the capacitor. Express your answer in terms of the variables C and AV. O AZO + O 2 ? Submit Previous Answers Resuest Answer X Incorrect; Try Again

  • Part A With vacuum between its plates, a parallel-plate capacitor has capacitance 4.50 pF. You attach...

    Part A With vacuum between its plates, a parallel-plate capacitor has capacitance 4.50 pF. You attach a power supply to the capacitor, charging it to 320 kV, and then disconnect it. You then insert a dielectric sheet that fills the space between the plates. The potential difference between the plates decreases to 1.60 kV, and the charge on each plate remains constant. Find the energy stored in the capacitor before you insert the sheet Express your answer with the appropriate...

  • The plates of an air-filled parallel-plate capacitor with a plate area of 16.5 cm2 and a...

    The plates of an air-filled parallel-plate capacitor with a plate area of 16.5 cm2 and a separation of 8.80 mm are charged to a 130-V potential difference. After the plates are disconnected from the source, a porcelain dielectric with κ = 6.5 is inserted between the plates of the capacitor. (a) What is the charge on the capacitor before and after the dielectric is inserted? Qi = ___C Qf = ____C (b) What is the capacitance of the capacitor after...

  • A parallel-plate vacuum capacitor is connected to a batteryand charged until the stored electric energy is...

    A parallel-plate vacuum capacitor is connected to a battery and charged until the stored electric energy is U. The battery is removed, and then a dielectric material with dielectric constant K is inserted into the capacitor, filling the space between the plates. Finally, the capacitor is fully discharged through a resistor (which is connected across the capacitor terminals).A.)Find Ur, the the energy dissipated in the resistor.Express your answer in terms of U and other given quantities.B.) Consider the same situation...

  • QUESTIONS A parallel plates capacitor of capacitance Co is connected to a battery of potential difference...

    QUESTIONS A parallel plates capacitor of capacitance Co is connected to a battery of potential difference V. When the capacitor is completely charge, the electrical energy stored in it is Uo. Keeping the capacitor connected to the battery, a dielectric of constant is inserted between the two plates What are the capacitance and the energy U of the capacitor after insertion of the dielectric? U. Uo CEKCO, U= к CE , U= KUO CEKCO, U= KUO

  • If possible can you answer the different if the battery is connected or disconnected. Thank you...

    If possible can you answer the different if the battery is connected or disconnected. Thank you Battery gets disconnected A capacitor is connected to a 12-volt battery. The initial capacitance is C; the initial charge stored is Q; the initial field between the plates is E; and the initial stored energy is U. Then, the distance between the plates is reduced by a factor of 2. The battery is then disconnected. Following this, the space between the plates is filled...

  • An uncharged parallel-plate capacitor with only air between the plates has C◦ = 0.600 mF. It...

    An uncharged parallel-plate capacitor with only air between the plates has C◦ = 0.600 mF. It is connected to an EMF source with E = 6.00 V. a) How much charge Q◦ accumulates on the cap, and how much energy is stored, U◦? b) The capacitor is discharged back to zero, then filled with a dielectric material that brings its capacitance up to C1 = 1.950 mF. What is the value of κ1 for the dielectric material? When connected to...

  • You have a capacitor with capacitance C that is charged to  Voltage V. The capacitor contains a...

    You have a capacitor with capacitance C that is charged to  Voltage V. The capacitor contains a dielectric with value 2 x the vacuum dielectric constant. After it is charged, the battery is disconnected. Then the dielectric is removed, leaving an air gap behind.. Answer the following questions 1. Determine the following (show work) Charge, Voltage, and energy stored in the capacitor before and after the dielectric is removed. 2. In terms of energy conservation with regards to energy stored in...

  • A parallel plate capacitor of capacitance Co has plates of area A with separation d between...

    A parallel plate capacitor of capacitance Co has plates of area A with separation d between them. When it is connected to a battery of voltage Vo, it has a charge of magnitude Qo on its plates. It is then disconnected from the battery and the space between the plates is filled with a material of dielectric constant 3. After the dielectric is added, the magnitudes of the charge on the plates and the potential difference between them are 15.

  • A parallel-plate vacuum capacitor has 7.30 J of energy stored in it. The separation between the...

    A parallel-plate vacuum capacitor has 7.30 J of energy stored in it. The separation between the plates is 3.20 mm . If the separation is decreased to 1.40 mm , A. what is the energy now stored if the capacitor was disconnected from the potential source before the separation of the plates was changed? B. What is the energy now stored if the capacitor remained connected to the potential source while the separation of the plates was changed?

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT