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Capacitors
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Questions (371)
When an air capacitor with a capacitance of 300 nF (1 {\rm nF} = 10^{-9}\;{\rm F}) is connected to a power supply, the energy
3 answers
asked by
Erin
700 views
A 10uf capacitor is charged by an 80v supply and then connected across an uncharged 20uf capacitor calculate the final p.d
4 answers
asked by
Philemona
577 views
According to its design specification, the timer circuit delaying the closing of an elevator door is to have a capacitance of
4 answers
asked by
bad at physics
856 views
An air-filled capacitor consists of two parallel plates, each with an area of 7.60 cm2, separated by a distance of 1.70 mm. If a
4 answers
asked by
andrew
3,152 views
An uncharged capacitor is connected to the terminals of a 3.0 V battery, and 9.0 uC flows to the positive plate. The 3.0 V
4 answers
asked by
JOTHEY
3,325 views
A parallel plate capacitor is connected to a voltage source as shown in Figure 4.76a. The dielectric is free space. A flat
4 answers
asked anonymously
102 views
How does the energy stored in a capacitor change if (a) the potential difference is
doubled, and (b) the charge on each plate is
4 answers
asked by
Jep
1,846 views
A 2.0-microF capacitor is charged to 50V and then connected in parallel (positive to positive plate) with a 4.0-microF capacitor
4 answers
asked by
gOOD eVE
3,188 views
A capacitor stores 5.25 x 10^-5 C of charge when connected to a 1.5-V battery. How much charge does the capacitor store when
1 answer
asked by
ali-1
396 views
A 0.25 mF capacitor is connected to a 9.0 V battery. What is the charge on the capacitor?
3 answers
asked by
sam
2,343 views
A capacitor is constructed with two parallel metal plates each with an area of 0.61 m^2 and separated by d = 0.80 cm. The two
4 answers
asked by
AAA
2,569 views
What is the voltage across a capacitor after a time of two constants when a. charging from zero voltage and b. discharging from
3 answers
asked by
Jason
2,816 views
A 6 uF capacitor is initially charged to 100V and then connected across a 600 ohm resistor. a) what is the initial charge on the
3 answers
asked by
Owen
1,367 views
A capacitor is constructed of two concentric conducting cylindrical shells. The radius of the inner cylindrical shell is 2.35
3 answers
asked by
Anne
765 views
A series arrangement of three capacitor of value 8 microfarad 12 microfarad and 24 microfarad is connected in series with a 90
4 answers
asked by
Stella
190 views
What are the charges on and the potential difference across each capacitor in the figure if V = 13.2 V?
2 answers
asked by
king
814 views
A parallel-plate capacitor is made from two plates 12.0cm on each side and 4.50mm apart. Half of the space between these plates
4 answers
asked by
Rachel
2,061 views
Two plates, each of area 3.40*10-4 m2, are used to construct a parallel-plate capacitor with capacitance 1.20 pF.
(a) Find the
4 answers
asked by
Max
2,244 views
Two capacitors are identical, except
that one is filled with a dielectric (� = 4.50). The empty capacitor is connected to a 12.0
4 answers
asked by
ann
1,750 views
Three capacitors 5uF, 3uF and 2uF are connected in series to a 100V d.c. Draw the circuit diagram.
Calculate the energy stored by
4 answers
asked by
Anonymous
805 views
Three identical 10 micro farad capacitors are connected in series across a 100V DC supply...calculate the total charge
3 answers
asked by
Mohau Mercy
757 views
a) What is the maximum current in a 4.00 µF capacitor when it is connected across a North American electrical outlet having
3 answers
asked by
Cassandra
1,055 views
A parallel-plate capacitor is formed from two 1.0{\rm cm} \times 1.0{\rm cm} electrodes spaced 2.8{\rm mm} apart. The electric
3 answers
asked by
holly
1,311 views
Two capacitors have the same plate separation, but one has square plates and the other has circular plates. The square plates
2 answers
asked by
Sarah
886 views
If the magnitude of the electric field in air exceeds roughly 3 106 N/C, the air breaks down and a spark forms. For a two-disk
3 answers
asked by
james
858 views
if a 10 microfarad capacitor and a 20 microfarad capacitor are connected in series what if the equivalent capacitance of the
3 answers
asked by
harold
1,016 views
If three unequal capacitors, initially uncharged, are connected in series across a battery, which of the following statements is
3 answers
asked by
Cal
3,176 views
The plates of a parallel plate capacitor each have an area of 0.40 m2 and are separated by a distance of 0.02 m. They are
3 answers
asked by
kevin
1,602 views
A 5.0 uF capacitor is charged to a p.d of 10v. It is then removed from the supply and connected in parallel with an uncharged 20
3 answers
asked by
Saad
1,532 views
The positive and negative plates of a parallel-plate capacitor have an area of 1.05 cm by 1.05 cm. Their surface charge
4 answers
asked by
Henry
852 views
A 300v battery is connected across capacitors 3uF and 6uF in parallel. Evaluate the charge and energy stored in each capacitor
4 answers
asked by
Jaccy
2,620 views
Question
Three capacitors, each of capacitance 120 pF, are each charged to 500 V and then connected in series. Determine (a) the
6 answers
asked by
gOOD eVE
2,123 views
A capacitor has a capacitance of 7.28uF. What amount of excess charge must be placed on each of its plates to make the potential
2 answers
asked by
van
1,106 views
An 8.3 uF and a 2.9 uF capacitor are connected in series across a 24 V battery. What voltage is required to charge a parallel
3 answers
asked by
Anonymous
1,044 views
how a bleeder resistor (R = 260 k) is used to discharge a capacitor (C = 85.0 µF) after an electronic device is shut off,
4 answers
asked by
taryn
1,438 views
A parallel-plate capacitor is charged by a battery and then the battery is removed and a dielectric of constant K is used to
3 answers
asked by
Liz
1,583 views
The figure shows an electron entering a parallel-plate capacitor with a speed of 5.65×106 . The electric field of the capacitor
4 answers
asked by
Nas
1,570 views
A fully charged 98 uF capacitor is discharged through a 125 ohms resistor. How long will it take for the capacitor to lose 75%
3 answers
asked by
JM
1,275 views
A slab of copper of thickness b = 1.566 mm is thrust into a parallel-plate capacitor of C = 4.00×10-11 F of gap d = 10.0 mm, as
4 answers
asked by
Mike
976 views
Two capacitors, C1=25.0x10^-6 and C2=5.0x10^-6 are connected in parallel and charged with a 100-V power supply.
a)calculate the
5 answers
asked by
nat
1,325 views
Can please help me understand this question?
A capacitor has a capacitance of 2.0 10-8 F. In the charging process, electrons are
2 answers
asked by
Jim
691 views
Capacitor C1,C2, C3 having capacitant of 3UF, 18UF and 6UF respectively. Connect them so that their total capacitant is a). 24UF
2 answers
asked by
Cyrus
229 views
What is the voltage across the 6 μf capacitor, Vab = 20V?
2 answers
asked by
Lucia
493 views
At t = 0 the switch S is closed with the capacitor uncharged. If C = 30 micoF, rmf= 50 V, and R = 10 k, what is the potential
2 answers
asked by
AAA
1,129 views
Suppose the space between the plates of the capacitor is filled with equal thickness of the same dielectrics but are stacked on
3 answers
asked by
kay
528 views
Calculate how much energy is stored in a 17μF capacitor when it is charged to a potential
difference of 200 V
4 answers
asked by
sam
955 views
A 10 nF capacitor is charged to 5 V. How much charge does it store?
2 answers
asked by
Raisa
701 views
Capacitor A and capacitor B both have the same voltage across their plates. However, the energy of capacitor A can melt m
4 answers
asked by
Phil-- HELP NEEDED ASAP
1,887 views
Three identical capacitors are connected in series to a battery. If a total charge of Q flows from the battery, how much charge
3 answers
asked by
Liz
2,731 views
lets say two capacitors C1 and C2 1uF each are connected in series with a voltage source 5v. One of the capacitors C2 has an
3 answers
asked by
Venkatarama
873 views
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Capacitance
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