Question

A proposed design for a cardiac defibrillator contains a parallel-plate capacitor that stores 350 J of...

A proposed design for a cardiac defibrillator contains a parallel-plate capacitor that stores 350 J of electrical energy when there is a potential difference of 3800 V across the plates. The plate area is 0.010 m2 and the plates are separated by Teflon (κ = 2.0).

What is the distance between the plates, to 3 significant figures?

Homework Answers

Answer #1

The energy stored in a parallel plate capacitor is given by

Therefore, the capacitance of cardiac defibrillator containing parallel plate capacitor is

Now, the capacitance of a parallel plate capacitor with dielectric is related to the plate area and the distance between the plates by the relation

     

  

Hence, the distance between the plates is

  

  

Therefore. distance between the plates is

Know the answer?
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
Similar Questions
A parallel-plate capacitor is made from two aluminum foil sheets, each 3.6 cm long and 5.4...
A parallel-plate capacitor is made from two aluminum foil sheets, each 3.6 cm long and 5.4 cm wide. The two sheets are separated by a distance of 0.028 mm. 1) What is the absolute value of the charge on the plate with the lower voltage? qlower = 2) Now a piece of teflon with a dielectric constant of κ = 2.1 is inserted to fill the space between the plate. What is the capacitance of the capacitor with the teflon...
A parallel-plate capacitor has plates of area 0.40 m2 separated by 0.30 mm. The capacitor is...
A parallel-plate capacitor has plates of area 0.40 m2 separated by 0.30 mm. The capacitor is connected across a 9.0-V potential source . The energy density in the capacitor is: a. 6.58x10^-3 J/m3 b. 7.21x10^-5 J/m3 c. 2.67x10^-6 J/m3 d. 1,33x10^-7 J/m3 e. The correct answer is not listed
1. Find the capacitance of a parallel plate capacitor having plates of area 3 m2 that...
1. Find the capacitance of a parallel plate capacitor having plates of area 3 m2 that are separated by 0.08 mm of Teflon. Give answer in terms of 10-7 F. 2. What is the average power output of a heart defibrillator that dissipates 472 J of energy in 7 ms? Give answer in terms of 104 W. 3. What is the strength of the electric field between two parallel conducting plates separated by 1 cm and having a potential difference...
Find the capacitance of a parallel plate capacitor having plates of area 2.70 m2 that are...
Find the capacitance of a parallel plate capacitor having plates of area 2.70 m2 that are separated by 0.635 mm of Teflon. The dielectric constant of Teflon is 2.1. _______µF
Find the capacitance of a parallel plate capacitor having plates of area 5.90 m2 that are...
Find the capacitance of a parallel plate capacitor having plates of area 5.90 m2 that are separated by 0.100 mm of teflon.
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.
Consider two parallel plates (as in a parallel plate capacitor), with plates which are very much...
Consider two parallel plates (as in a parallel plate capacitor), with plates which are very much wider than their separation, with an electric potential across the plates. Sketch the equipotential lines and field lines between the plates. If, the distance between the plates is 0.10 m, the potential of one plate is 0 V and the potential of the second plate is 10 V, what is the potential at a point 0.02 m from the second plate?
A parallel-plate capacitor stores a charge Q = 4.00 nC when connected to a battery of...
A parallel-plate capacitor stores a charge Q = 4.00 nC when connected to a battery of voltage V = 10.0 V. The energy density is then u = 3.62 × 10-4 J/m3. What is the surface area of the plates? Select one: a. 0.0387 m2 b. 0.0250 m2 c. 0.0923 m2 d. 0.0500 m2 e. 0.0103 m2
A parallel plate capacitor has plates with equal and opposite charges ±Q , which are initially...
A parallel plate capacitor has plates with equal and opposite charges ±Q , which are initially separated by a distance d . The capacitor is not connected to a battery. Then, the plates are moved farther apart so they are now separated by a distance 2d and also a dielectric with dielectric constant κ=2 that fills the entire space in the gap is inserted. What happens to the stored energy U and the potential difference between the plates ΔV=V+−V− after...
A parallel plate capacitor has plates of area A =0.075 m2 separated by distance d =2.30...
A parallel plate capacitor has plates of area A =0.075 m2 separated by distance d =2.30 ✕ 10−5 m and is attached to a battery with potential difference ΔV = 14 V.(The permittivity of free space is εo= 8.85 ✕ 10−12 C2/N·m2). (a)Calculate the capacitance (in F) if the space between the plates is filled with air. (b) What is the electric field between the plates of the capacitor? Suppose that this capacitor is replaced with another with capacitance C...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT