Question

**1. Find the capacitance of a parallel plate capacitor
having plates of area 3 m ^{2} 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 10 ^{4} W.**

**3. What is the strength of the electric field between
two parallel conducting plates separated by 1 cm and having a
potential difference (voltage) between them of 2.45 ×10 ^{4}
V ? Give answer in terms of 10^{6} V/m.**

**4. A doubly charged ion is accelerated to an energy of
22 keV by the electric field between two parallel conducting plates
separated by 9 cm. What is the electric field strength between the
plates? Give answer in terms of 10 ^{5} V/m.**

**5. An electron is to be accelerated in a uniform
electric field having a strength of 4 ×10 ^{6} V/m . What
energy in keV is given to the electron if it is accelerated through
0.1 m?**

Answer #1

1. What is the energy stored in the 8.1 μF capacitor of a heart
defibrillator charged to 9.9 kV?
2. How far apart are two conducting plates that have an electric
field strength of 3.5×103 V/m between them, if their
potential difference is12 kV?
3. The naturally occurring charge on the ground on a fine day
out in the open country is 2.32 nC. What is the electric potential
at a height of 3.98 m?
4. What is the strength...

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 separated by 0.100 mm of
teflon.

1.
a doubly charged ion is accelerated to an energy of 22 keV by the
electric field between two parallel conducting plates separated by
9 cm. what is the electric field strength between the plates? give
answer in terms of 10^5 V/m.
2. an electrostatic paint sprayer has a potential of 25.0 kV
that repels paint droplets onto a grounded object. what charge must
a 0.75 mg drop of paint have to arrive at the object with a speed
of...

1. An electron is to be accelerated in a uniform electric field
having a strength of 8 ×106 V/m . What energy in keV is
given to the electron if it is accelerated through 0.8 m
2. What capacitance is needed to store 6.14 μC of charge at a
voltageof 120 V? Give answer in terms of 10-8 F
3. In open heart surgery, a much smaller amount of energy will
defibrillate the heart. Heart defibrillators store 39 J of...

What is strength of the electric field between two parallel
conducting plates separated by 1.00 cm and having an electric
potential difference between them of 15,000 V?
A) 1.5 kV/m
B) 15 kV/m
C) 1.5 MV/m
D) 15MV/m

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...

A parallel plate capacitor has plates of area A =0.055
m2 separated by distance d =1.60 ✕ 10−5 m and is attached to a
battery with potential difference ΔV = 22 V.(The permittivity of
free space is εo= 8.85 ✕ 10−12 C2/N·m2).
calculate the capacitance in F if the space between the plates
is filled with air
what is the electric field between the plates of the
capacitor
suppose the capacitor is replaced with another capacitance C=
1.90 x10^-5 F,...

The electric field strength between two parallel conducting
plates separated by 3.00 cm is 7.0 x 10^4 V/m. What is the
potential difference between the plates?
Please include a picture, and show work pls!!! I need to
understand this!!!

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?

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