Question

Air filled capacitor #1 has area of plates A and gap d. It is charged to...

Air filled capacitor #1 has area of plates A and gap d. It is charged to the charge Q. Capacitor #2 has area of plates A and gap d, but it is filled with dielectric of dielectric constant K=4. Capacitor #2 is also charged to the charge 2Q. At some moment capacitors are corrected, positive plate to positive plate. When equilibrium is reached, what is the charge of capacitor #2?

Q/5

3Q/5

0

Q/2

5Q

3Q/12

4Q

Q

2Q

5Q/12

12Q/5

Science   Physics   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

capacitance of an air filled parallel plate capacitor = .

capacitance of parallel plate capacitor filled with dielectric of dielectric constant K = .

initial charge on first capacitor = Q

initial charge on 2nd capacitor = 2Q

When the capacitors are connected with postive plate to positive plate, flow of charge takes place until the potential becomes equal.

The common potential is given by Vcommon = sum of charges / sum of capacitance

Therefore, final charge on 2nd capacitor is

[answer]

[Correct option is last option]

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
A parallel plate capacitor has an air filled gap. It is attached an EMF and charged...
A parallel plate capacitor has an air filled gap. It is attached an EMF and charged it to charge Qo and voltage difference ΔVco. Two different experiments are done. Case A: The capacitor is disconnected from the EMF first before the gap in between the plates is then filled with Teflon. Case B: The gap between the capacitor plates is then filled with Teflon with the capacitor still connected directly across the terminals of the EMF. Which statement is true...
A 27.5 nF air-filled parallel plate capacitor is connected in series with a 1.75 kΩ resistor...
A 27.5 nF air-filled parallel plate capacitor is connected in series with a 1.75 kΩ resistor and a battery of emf 36.0 V. (a) Determine the final charge on the capacitor. C (b) Once the capacitor is fully charged and there is no current in the circuit, a sheet of plastic with a dielectric constant of 2.80 is introduced in the gap between the plates of the capacitor, completely filling the gap. If the area of each plate is 0.275...
A parallel plate capacitor has circular plates of diameter 1 cm. It is air-filled; there is...
A parallel plate capacitor has circular plates of diameter 1 cm. It is air-filled; there is no dielectric. We want the capacitor to hold 10-8 joules of energy when charged to 100 volts. What should the plate separation be?
An air-filled parallel-plate capacitor with capacitance C0 stores charge Q on plates separated by distance d....
An air-filled parallel-plate capacitor with capacitance C0 stores charge Q on plates separated by distance d. The potential difference across the plates is ΔV0 and the energy stored is PEC,0. If the capacitor is disconnected from its voltage source and the space between the plates is then filled with a dielectric of constant k = 2.00, evaluate the ratios (a) Cnew/C0, (b) ΔVnew/ ΔV0, and (c) PEC, new/PEC, 0.
A parallel-plate air capacitor of area A= 14.0 cm2 and plate separation d= 2.20 mm is...
A parallel-plate air capacitor of area A= 14.0 cm2 and plate separation d= 2.20 mm is charged by a battery to a voltage 56.0 V. If a dielectric material with κ = 4.00 is inserted so that it fills the volume between the plates (with the capacitor still connected to the battery), how much additional charge will flow from the battery onto the positive plate?
A parallel-plate air-filled capacitor having area 58 cm2 and plate spacing 0.89 mm is charged to...
A parallel-plate air-filled capacitor having area 58 cm2 and plate spacing 0.89 mm is charged to a potential difference of 520 V. Find (a) the capacitance, (b) the magnitude of the charge on each plate, (c) the stored energy, (d) the electric field between the plates, (e) the energy density between the plates.
A parallel-plate capacitor has plates with an area of 0.012 m2 and a separation of 0.009...
A parallel-plate capacitor has plates with an area of 0.012 m2 and a separation of 0.009 m. The space between the plates is filled with a dielectric whose dielectric constant is 2. What is the potential difference between the plates when the charge on the capacitor plates is 5 ?C? (in kV)
An air-filled capacitor consists of two parallel plates, each with an area of 7.60 cm2, separated...
An air-filled capacitor consists of two parallel plates, each with an area of 7.60 cm2, separated by a distance of 1.40 mm. If a 22.4-V potential difference is applied to these plates, calculate the following. (a) the electric field between the plates magnitude     kV/m direction     ---Select--- from the positive plate to the negative plate from the negative plate to the positive plate (b) the capacitance   pF (c) the charge on each plate
1)A parallel plate capacitor (denoted as Capacitor 1) has a plate area A1 and a separation...
1)A parallel plate capacitor (denoted as Capacitor 1) has a plate area A1 and a separation distance d1. It is filled with a dielectric made of mylar (κ=3.1). With these conditions, it has a capacitance C1. A second parallel plate capacitor (denoted as Capacitor 2) has the same plate area as the first capacitor (A1 = A2) but the separation distance is twice as large (d1 = ½ d2). The second capacitor is filled with the same dielectric (mylar) and...
1 A parallel plate capacitor is connected to a battery and becomes fully charged the capacitor...
1 A parallel plate capacitor is connected to a battery and becomes fully charged the capacitor is then disconnected and the separation between the plates is halved in such a way that so charge leaks off As the plate separation is being halved which of the following parameters remains constant? An air filled k=1 ideal parallel plate capacitor has a capacitance of C. If the area of the plates is doubled insert a dielectric material k=2 and the distance between...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT