Question

A 7 volt battery is connected to a parallel plate capacitor with an initial capacitance of 7 micro-farads without a dielectric. While still connected to the battery, the sheets are moved a factor of 5 times further apart and a dielectric with a dielectric constant of 1.6 is inserted between the sheets. Then, the battery is disconnected, and after the battery is disconnected, the dielectric is removed and the sheets are brought a factor of 3 times closer together. What is the final stored energy in micro-joules in the capacitor?

Answer #1

A capacitor of 9 micro-farads is connected to a 16 volt battery.
The distance between the plates of the capacitor is increased by a
factor of 3.6 while the capacitor is still connected to the
battery. The battery is then disconnected from the plates, and then
the plates are moved closer by a factor of 4.2. In their final
configuration, what is the charge on each sheet in
micro-coulombs?

A
parallel-plate capacitor is connected to a battery and then
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to a battery. The capacitor is fully charged to Q Coulombs and a
voltage of V. (C is the capacitance and U is the stored energy.)
Answer the following questions regarding the capacitor charged by a
battery. For each statement below, select True or False.
After being disconnected from the battery, inserting a
dielectric with κ will increase U.
After being disconnected from the battery, inserting a
dielectric with κ...

A parallel plate capacitor with plate separation d is connected
to a battery. The capacitor is fully charged to Q Coulombs and a
voltage of V. (C is the capacitance and U is the stored energy.)
Answer the following questions regarding the capacitor charged by a
battery. For each statement below, select True or False. 1. After
being disconnected from the battery, inserting a dielectric with ?
will decrease U. 2.With the capacitor connected to the battery,
decreasing d increases...

9 equal capacitors are connected purely in parallel to a 8 volt
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configuration is 626 micro-joules greater than the series
configuration. What is the value of each capacitor in
micro-farads?

A parallel plate capacitor with plate separation d is connected
to a battery. The capacitor is fully charged to Q Coulombs and a
voltage of V Volts. (C is the capacitance and U is the stored
energy.) Select true or false for each statement.
1)With the capacitor connected to the battery, inserting a
dielectric with κ > 1 will decrease U.
2)With the capacitor connected to the battery, decreasing d
increases C.
3)After being disconnected from the battery, decreasing d...

A parallel-plate capacitor with plate separation d is connected
to a battery that provides a potential difference ε. While still
connected to the battery, the plate separation is increased to
2d.
a) Does the potential difference across the capacitor change as
the separation increases? If so, then by what factor? If not, then
why not?
b) Does the capacitance change as the separation increases? If
so, then by what factor? If not, then why not?
c) Does the capacitor charge...

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
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the following parameters remains constant?
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dielectric material k=2 and the distance between...

A parallel plate capacitor with a
plate area of 20.0 cm2 and plate separation of 8.00 mm
is connected to a constant potential difference of 5.00 V. A
dielectric with a dielectric constant of 4.00 is inserted between
the plates.
a) What is the energy stored in the capacitor?
b) The capacitor is disconnected from the battery and the
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c) What does...

An air-filled parallel-plate capacitor of capacitance 12 nF has
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b) How much work is required to remove the dielectric in part
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2) A nickel wire of length 10 m and radius 2 mm has a potential
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