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?
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...

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
decreased when the quartz was inserted, and by how much.

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 capacitor is made from two plates 7 cm^2 in
area, with a plate separation of 3 mm. The capacitor is fully
charged across a 30 V battery, and then disconnected.
How much charge is on the capacitor?
Now material with a dielectric constant of 30 is inserted to
fill the space between the plates, (with the battery disconnected),
What is the charge on the capacitor?
What is the energy stored in the capacitor?
What the field between...

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 has capacitance CC = 12.5 pFpF when
the volume between the plates is filled with air. The plates are
circular, with radius 3.00 cmcm. The capacitor is connected to a
battery and a charge of magnitude 25.0 pCpC goes onto each plate.
With the capacitor still connected to the battery, a slab of
dielectric is inserted between the plates, completely filling the
space between the plates. After the dielectric has been inserted
the charge on each 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
space, the voltmeter reads 14.5 V . What is the dielectric constant
of this material?
What will the voltmeter read if the dielectric is now pulled...

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
capacitor voltage to 1.00 kV.
a.Find the vacuum electric field between...

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 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

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