Question

A parallel plate capacitor in air is constructed with a plate
area of 7.75cm^{2} and a plate separation of 0.664mm.

A) Determine the value of the capacitance of this parallel plate capacitor.

B) This capacitor is placed across a 21.0 V battery and allowed to fully charge. What is the value of this charge with included units.

C) When fully charged, what is the energy stored inside the capacitor?

D) With the battery still connected, a pyrex glass dielectric material with dielectric constant K = 5.75 is inserted between the plates, completely filling the space between. What is the new charge stored in the capacitor?

Answer #1

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?
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What is the charge on the capacitor?
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What the field between...

A parallel-plate capacitor is constructed of plates with area
2.5 m2 that are separated by 0.5 mm of air (dielectric constant Ka
= 1:0006). The capacitor is connected to a 9 V battery and fully
charged. The battery is then disconnected, and quartz is inserted
to ll the gap between the plates (dielectric constant Kq = 4:3).
Determine whether the energy density of this capacitor increased or
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A
parallel plate capacitor of area A = 30 cm2 and separation d = 5 mm
is charged by a battery of 60-V
If the air between the plates is replaced by a dielectric of
k= 4, but the battery disconnected before the dielectric
inserted,
1) Find the capacitance of the capacitor.
2) What is the charge on the capacitor?
3) What is the energy stored in the capacitor?
please explain. Thank you

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 capacitor with only air between the plates is
charged by connecting it to a battery. The capacitor is then
disconnected from the battery, without any of the charge leaving
the plates.
A voltmeter reads 44.0 V when placed across the capacitor. When
a dielectric is inserted between the plates, completely filling the
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Consider a parallel plate capacitor with plate dimensions of 10
cm x 10 cm and a gap spacing of 2.00 cm. The capacitor is connected
to a battery supplying a voltage across the capacitor of 2.00 kV.
After the capacitor is fully charged, the battery is disconnected.
A dielectric material is then inserted into the vacuum space to
completely fill the capacitor. This result in a decrease of the
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a.Find the vacuum electric field between...

a
parallel plate capacitor is fully charged by a battery, and then
the battery is disconnected. if a dielectric material is then
inserted between the capacitor plates, which of the following
quantities would remain constant?
A) electric field between the plates
B) potential difference across the plates
C) charge on each plate
D) energy stored in capacitor
E) charge and energy would both remain constant

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
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a) Does the potential difference across the capacitor change as
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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 (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
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A second parallel plate capacitor (denoted as Capacitor 2) has the
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= A2)
but the separation distance is twice as large (d1
= ½ d2).
The second capacitor is filled with the same dielectric (mylar) and...

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