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May 25, 2015

Search: a 2.0 uF and UF capacitor are connected in a series across an 8.0 V dc source what is the charge on the 2.0 uF capacitor?

Number of results: 14,274

Physics
The same voltage is applied between the plates of two different capacitors. When used with capacitor A, this voltage causes the capacitor to store 17 μC of charge and 5.7 x 10^-5 J of energy. When used with capacitor B, which has a capacitance of 6.9 μF, this voltage...
February 21, 2015 by e

physics!!!
Two capacitors, C1 = 27.0 F and C2 = 35.0 F, are connected in series, and a 21.0 V battery is connected across them. (a) Find the equivalent capacitance, and the energy contained in this equivalent capacitor. equivalent capacitance= F total energy stored= (b) Find the ...
January 27, 2012 by Help

physics
A resistor with 780 is connected to the plates of a charged capacitor with capacitance 4.32 . Just before the connection is made, the charge on the capacitor is 7.80 1)What is the energy initially stored in the capacitor? 2)What is the electrical power dissipated in the ...
April 22, 2013 by samya

Differential Equations
Question 1 A particle moves on the x-axis with an acceleration , a=(6t-4)ms^-2 . Find the position and velocity of the particle at t=3 , if the particle is at origin and has a velocity of 10ms^-1 when t=0 by using either the method of undetermined coefficient or Laplace ...
November 5, 2011 by mrexp21

Physics
Find the electric field between the plates of a capacitor given the following: (1) C= 10pF (2) the capacitor is connected to a 25 V battery (3) there is a vacuum between the capacitor plates (4) plate separation is 2 mm
March 3, 2013 by Joe

Physics
Increasing the voltage across the two plates of a capacitor will produce what effect on the capacitor? a. increase charge b. decrease charge c. increase capacitance d. decrease capacitance how do i approach this one?
February 23, 2011 by Kris

Physics
Increasing the voltage across the two plates of a capacitor will produce what effect on the capacitor? a. increase charge b. decrease charge c. increase capacitance d. decrease capacitance how do i approach this one?
February 24, 2011 by Anthony

Physics
A parallel plate capacitor has a rectangular plates with length 5cm and width 3cm. They are separated by a distance 12m and hooked up to a 20V battery A.) what is the area of each plate in m^2 B.) assuming nothing else is present on the circuit what is the potential difference...
February 25, 2015 by Macy

College physics
Open Question: Find the electric field between the plates of a capacitor given the following:? (1) C= 10pF (2) the capacitor is connected to a 25 V battery (3) there is a vacuum between the capacitor plates (4) plate separation is 2 mm
March 3, 2013 by Julie

physics please help!!
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 ...
February 6, 2012 by archi

Capacitance
A parallel plate capacitor with plates of area 320 cm.^2 is charged to a potential difference V and is then disconnected from the voltage source. When the plates are moved 0.3 cm. farther apart, the voltage between the plates is increased by 152 V. What is the charge on the ...
November 3, 2012 by andrew

physics
When an air capacitor with a capacitance of 400 (1 = ) is connected to a power supply, the energy stored in the capacitor is 2.0510−5 . While the capacitor is kept connected to the power supply, a slab of dielectric is inserted that completely fills the space between ...
January 15, 2013 by Patty

physics
When an air capacitor with a capacitance of 400 (1 = ) is connected to a power supply, the energy stored in the capacitor is 2.0510−5 . While the capacitor is kept connected to the power supply, a slab of dielectric is inserted that completely fills the space between ...
January 15, 2013 by Patty

Physics
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 stored in the capacitor is 1.9510−5 J. While the capacitor is kept connected to the power supply, a slab of dielectric is inserted that ...
February 4, 2010 by Erin

Physics
When an air capacitor with a capacitance of 380 nF (1 {\rm nF} = 10^{-9}\;{\rm F}) is connected to a power supply, the energy stored in the capacitor is 1.9510−5 J. While the capacitor is kept connected to the power supply, a slab of dielectric is inserted that ...
February 19, 2012 by Robert Soos

MONGU COLLEGE
A 1200 ohms resistance of AC 0.07H inductance coil and a 0.001mF capacitor are in series across a 120V source determine. a.frequency. b.current. c.impedance.
March 5, 2013 by barotseland network

Physics
A circuit with a capacitor took .138s to discharge from its max charge Qmax to half of that max charge once the battery was removed. In this series circuit there also is one resistor with 100 G(ohm symbol). The voltage drop is 12V across the battery. a)How much time would it ...
April 4, 2008 by Andrea

physics
In a series circuit, a generator (1254 Hz, 13.8 V) is connected to a 15.5-Ω resistor, a 4.25-F capacitor, and a 5.32-mH inductor. Find the voltage across each circuit element. VR = VC = VL =
March 20, 2012 by linds

Physics
A 11-V battery is connected to three capacitors in series. The capacitors have the following capacitances: 5.3 F, 10.7 F, and 31.8 F. Find the voltage across the 31.8-F capacitor. Please Help!
February 24, 2013 by Valerie

Physics
(a) If you use two quarters 2.00 mm apart to make a parallel plate capacitor, what is its capacitance? Measure the necessary quantities. (b) If you connect your capacitor in part (a) across 12 V potential difference, how much excess charge will flow onto each quarter? I am ...
January 30, 2008 by J

Physics
A 1.5 uF capacitor is connected to a 9.0 V battery. Use PE=1/2C(change in V)^2 to find the energy stored in the capacitor.
June 5, 2011 by Michael

Physical Science
A 9-Volt battery is used to charge a 280 mF capacitor over a 81 Ohms resistance. How long will it take for the capacitor to reach 75% of its maximum charge? What formula is relevant?
March 10, 2010 by Stephanie

Physics
How does the energy stored in a capacitor change if (a) the potential difference is doubled, and (b) the charge on each plate is doubled, as the capacitor remains connected to a battery? Does the stored energy go up by a factor of 4 for both A and B?
February 12, 2015 by Jep

Doogleberry Physcis
In an L-R-C series circuit, the resistance is 380 Ohms, the inductance is 0.400 H, and the capacitance is 2.0010−2 uF. What is the resonant frequency of the circuit? (omega naught) The capacitor can withstand a peak voltage of 570 volts. If the voltage source operates ...
September 23, 2012 by Doogleberry

Physics
The circuit below consists of three identical resistors each with resistance R=7 Ohm, two identical batteries with emfs E=9 V, and a capacitor with capacitance C=651 μF. The capacitor is initially uncharged at t = 0. (a) After a very very long time, t≫RC, what is ...
May 22, 2013 by Annoyingmous

Physics
A capacitor is made from two parallel plates separated by a distance d, and each has area A. The capacitor holds a charge Q. (a) What is the energy stored in the capacitor? (b) A mechanical force pulls the plates apart, without changing the stored charge, until they are 2d ...
February 27, 2013 by lindsey

Physics
Consider the process of charging a parallel plate capacitor with circular plates of radius R=5 cm separated by a distance d=0.2 cm. At some time t1, the capacitor is being charged with a current I=0.04 A. Consider a point P on the plane which is equally distant from the two ...
April 9, 2013 by abdul rahman

Physics
Consider the process of charging a parallel plate capacitor with circular plates of radius R=5 cm separated by a distance d=0.2 cm. At some time t1, the capacitor is being charged with a current I=0.04 A. Consider a point P on the plane which is equally distant from the two ...
April 13, 2013 by tanvir ali

PHYSICS
A 4.00 F capacitor is connected to a 18.0 V battery. How much energy is stored in the capacitor? This should be a relatively easy problem yet, I can't get it. Isn't it just E=.5*C*V^2
May 12, 2010 by Physics

Physics
Air isn't a perfect electric insulator, but it has a very high resistivity. Dry air has a resistivity of approximately 3 x 10^13 x m. A capacitor has square plates 10 cm on a side separated by 1.2 mm of dry air. If the capacitor is charged to 250 V, what fraction of the ...
March 13, 2010 by JOTHEY

physics
A 9500 pF capacitor holds plus and minus charges of 16.5*10-8 C. What is the voltage across the capacitor?
March 1, 2010 by electric field

Physics
A capacitor of a capacitant is subjected to 2000V of p.d across its terminal. Calculate the energy stored in the capacitor?
March 6, 2013 by Ollyjay

Science
1. What is the direction of charge flow when charging a capacitor? When discharging a capacitor? What is your evicence?
October 2, 2010 by Ronnie

physics capacitor
What voltage is required to store 8.0 x 10-5 C of charge on the plates of a 6.1-μF capacitor?
January 18, 2013 by help

Physics
Consider the system of capacitors shown in the figure below (C1 = 5.00 F, C2 = 7.00 F). Find the equivalent capacitance of the system. Find the charge on each capacitor. Find the potential difference across each capacitor. Find the total energy stored by the group.
September 22, 2010 by chuck

Physics
A capacitor has a charge of 5 C when charged by a potential difference of 1.5 V. What is the capacitance of the capacitor?
February 2, 2013 by anonymous

physics
The potential diffrence across a series combination of 4(micro)F and 12(micro)F capacitor is 240V. What is the potential diffrence across 4(micro)F capacitor?
January 11, 2012 by Nuwaya

Physics 2
Show that during the charging of the capacitor in an RC circuit, the charge of the capacitor, as a function of time, is: q(t) = C(1 e-t/RC)
August 14, 2012 by Robert

physics
A 0.29 \mu F and a 0.70 \mu F capacitor are connected in series to a 15 V battery.
December 6, 2010 by دلال

Physics
Consider a charging capacitor made out of two identical circular conducting plates of radius 21 cm. The plates are separated by a distance 8 mm (note that d<<a). The bottom plate carries a positive charge Q(t)= Q0(1+t/T) with Q0 = 5e-06 C and T = 0.005 sec, and the top ...
May 24, 2013 by Flux

Science
Using the analogy of the air capacitor, what do you think might be the cause of charge motion during capacitor discharging?
October 2, 2010 by Ronnie

Physics
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 ...
February 14, 2013 by Nicole

Physics
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 ...
February 14, 2013 by Nicole

Physics
A 24.0-V battery is connected to a 4.70-F capacitor. How much energy (in J) is stored in the capacitor? I'm guessing this is really easy but my professor sent us into the homework blind...again...
July 6, 2014 by Harlay

physics
A 20.0 \mu F capacitor initially charged to 20.0 \mu C is discharged through a 1.90 k\Omega resistor. How long does it take to reduce the capacitor's charge to 5.00 \mu C?
April 1, 2011 by john

physics
an LC circuit with a 3 uF capacitor and a 3 H inductor has a current I(t)=10*sin(2t) supplied to it . after 2 s, how much charge is stored on a plate of the capacitor?
March 12, 2012 by fatih

physics
an LC circuit with a 3 uF capacitor and a 3 H inductor has a current I(t)=10*sin(2t) supplied to it . after 2 s, how much charge is stored on a plate of the capacitor?
March 13, 2012 by fatih

Physic II
Physicists claim that charge never flows through an ideal capacitor. Yet when an uncharged capacitor is first placed in series with a resistor and a battery, then current flows through the battery and the resistor. Explain how this is possible.
March 13, 2014 by Vuline

physic
Physicists claim that charge never flows through an ideal capacitor. Yet when an uncharged capacitor is first placed in series with a resistor and a battery, then current flows through the battery and the resistor. Explain how this is possible.
March 30, 2014 by suleri

Physics
Two parallel plate capacitors have circular plates. The magnitude of the charge on these plates is the same. However, the electric field between the plates of the first capacitor is 2.2e5 N/C, while the field within the second capacitor is 3.8e5 N/C. Determine the ratio r_2/...
August 30, 2007 by Mary

Physics
A solenoid has N=1760.0 turns, length d=40 cm , and radius b=0.4 cm, (b<<d) . The solenoid is connected via a switch, S1 , to an ideal voltage source with electromotive force ϵ=7 V and a resistor with resistance R=25 Ohm . Assume all the self-inductance in the ...
May 23, 2013 by Anonymous

Physics
A parallel-plate capacitor has a capacitance of 2.1 F with air between the plates. The capacitor is connected to a 24 V battery and charged. The battery is then removed. When a dielectric is placed between the plates, a potential difference of 2.8 V is measured across the ...
March 11, 2012 by Tor

physics
A resistor (R = 900 ), a capacitor (C = 0.25 F), and an inductor (L = 2.0 H) are connected in series across a 240 Hz AC source for which Vmax = 140 V. Calculate values for the following. ---I only need help with part c---- c) the phase angle between the current and voltage ...
August 5, 2007 by asmi

Physics
A capacitor has two overlapping plates of width 4.9 m and length 3.5 m separated by 1.3 cm. A dielectric of dielectric constant = 58.0 fills the space between the plates. If this capacitor is connected to a 35 V battery, how much energy is stored in the capacitor when it is ...
May 1, 2011 by Sarah

physics
An air filled parallel plate capacitor has plates of area 0.0406 m^2 and seperation of 2.5*10^-6 m. a)What is the capacitence for the setup? b)Our capacitor is connected to a 550 v battery, how much energy is stored in the capacitor? c) If -1 mJ of work is performed by the ...
February 7, 2008 by jenish

physics
An air filled parallel plate capacitor has plates of area 0.0406 m^2 and seperation of 2.5*10^-6 m. a)What is the capacitence for the setup? b)Our capacitor is connected to a 550 v battery, how much energy is stored in the capacitor? c) If -1 mJ of work is performed by the ...
February 8, 2008 by Kwang hu111

physics
An air filled parallel plate capacitor has plates of area 0.0406 m^2 and seperation of 2.5*10^-6 m. a)What is the capacitence for the setup? b)Our capacitor is connected to a 550 v battery, how much energy is stored in the capacitor? c) If -1 mJ of work is performed by the ...
February 9, 2008 by Kwang hu111

physics
A 2.0 micro Farad capacitor in a circuit in series with a resistance of 1.0 mega ohms is charged with a 6.0v battery. How long would it take to chage the capacitor to three fourths of its maximum voltage.
October 29, 2013 by Jason

physics urgent!
The magnetic field in the region shown below is increasing by 5 T/s. The circuit shown (with R=25 , C=55 F, dimensions 1 m by 2 m) is inserted into the region as shown. The capacitor is initially uncharged. 1. What is the current in the circuit at the moment the circuit is ...
November 12, 2011 by sonia

physics
I have no clue: Two parallel plate capacitors have circular plates. The magnitude of the charge on these plates are the same. However, the electric field between the plates of the first capacitor is 2.2 x 10^5 N/C, while the field within the second capacitor is 3.8x 10^5 N/C. ...
July 1, 2008 by H

physics,electrostatics
A 40uf parallel plate capacitor is charged to 12v. The capacitor is removed from the battery and the separation distance increased from 2mm to 3mm. What is the total charge on the capacitor? How much energy was stored in the capacitor when the distance was 2mm? By how much is ...
October 9, 2014 by david

physics
Consider the process of charging a parallel plate capacitor with circular plates of radius R=5 cm separated by a distance d=0.2 cm. At some time t1, the capacitor is being charged with a current I=0.075 A. Consider a point P on the plane which is equally distant from the two ...
April 12, 2013 by dd

Physics
A solenoid has N=1760.0 turns, length d=40 cm , and radius b=0.4 cm, (b<<d) . The solenoid is connected via a switch, S1 , to an ideal voltage source with electromotive force ϵ=7 V and a resistor with resistance R=25 Ohm . Assume all the self-inductance in the ...
May 22, 2013 by Anonymous

Physics
A solenoid has N=1568.0 turns, length d=32 cm , and radius b=0.2 cm, (b<<d) . The solenoid is connected via a switch, S1 , to an ideal voltage source with electromotive force ϵ=13 V and a resistor with resistance R=25 Ohm . Assume all the self-inductance in the ...
May 23, 2013 by Annoyingmous

Physics
A capacitor of 4.5 MF, charged to 50v, is connected to another capacitor of = MF, charged to 100v. The total energy of the combination is
August 4, 2011 by Praveen

physics
Capacitor A has a capacitance CA =29.4 uF and us initially charged to a voltage of V1= 10.70 V. Capacitor B is initially uncharged . When the switches are closed, connecting the two capacitors, the voltage on capacitor A drops to V2 = 6.40 V. What is the capacitance CB (in uF...
November 23, 2011 by Jp

physics
A circuit contains a 10 F capacitor and a 30 F capacitor connected in parallel. What is the total capacitance of the circuit?
March 8, 2012 by ria

capacitor
A capacitor is made up of two metal plates, each having an area of 0.02 m2 and spaced 2.5 mm apart. A potential difference of 250 V across the plates establishes a charge of 50 nC. Calculate: a) The electric field strength, b) The electric flux density, c) The absolute ...
May 4, 2015 by azad

Physics
A capacitor is made from two 1.2 cm diameter coins separated by a 0.18 mm thick piece of paper (K = 3.7). A 6 V battery is connected to the capacitor. How much charge is on each coin? My solution: C= K * Permitivity * A/d = q/v I solved for q and got 1.2 X 10^-10 But i still ...
February 6, 2008 by BLESSED

Physics
Review Conceptual Example 11 before attempting this problem. An empty capacitor is connected to a 9V battery and charged up. The capacitor is then disconnected from the battery, and a slab of dielectric material (k=3)is inserted between the plates. (a) Find the amount by which...
February 9, 2012 by Sami

physics
According to its design specification, the timer circuit delaying the closing of an elevator door is to have a capacitance of 30.0 F between two points A and B. (a) When one circuit is being constructed, the inexpensive but durable capacitor installed between these two points...
October 15, 2013 by capacitance q

Physics
According to its design specification, the timer circuit delaying the closing of an elevator door is to have a capacitance of 30.0 F between two points A and B. (a) When one circuit is being constructed, the inexpensive but durable capacitor installed between these two points...
October 15, 2013 by bad at physics

physics
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 field strength inside the capacitor is 1.0\times10^{6}{N/C}} part a What is the charge (in {\rm nC}) on positive electrode? part b What is the charge...
June 19, 2013 by holly

Physics
Two parallel plate capacitor of capacitant, two microfarad &three microfarad are connec ted in parallel and d combination is 50V direct current. Draw d circuit diagram of arrangement and determine d following (i)charge on either plate of each capacity. (ii)p.d across d each ...
March 6, 2013 by Ollyjay

physics
In a series circuit, the voltage across the resistor has an amplitude of 10 V. Across the inductor it is 25 V and across the capacitor it is 9 V. To the nearest tenth, what is the amplitude of the voltage across the whole group?
April 22, 2013 by hannah

Calculus
A 15.2-F capacitor has an initial voltage of 2.00 V. It is charged with a current given by i=t5=t^2. Find the voltage across the capacitor at 1.75 seconds.
August 21, 2012 by Tim

physics
The electric potential energy stored in the capacitor of a defibrillator is 64 J, and the capacitance is 137 F. What is the potential difference that exists across the capacitor plates?
January 19, 2011 by Anonymous

Physics
The electric potential energy stored in the capacitor of a defibrillator is 77 J, and the capacitance is 123 F. What is the potential difference that exists across the capacitor plates?
February 18, 2013 by Don

physics
In the circuit below, at time t = 0, the switch is closed, causing the capacitors to charge. The voltage across the battery is 12 V The circuit: flickr. com/photos/ 68751220@N03 /6848519773/ A)Calculate the time constant for the RC circuit B)Calculate the time required for the...
July 27, 2012 by Dan

physics
The electric potential energy stored in the capacitor of a defibrillator is 83 J, and the capacitance is 124 F. What is the potential difference that exists across the capacitor plates? _____________ V
January 25, 2011 by ali-1

physics
(1)A parallel-plate capacitor carrying charge q0 is modified by the insertion of a dielectric with κ = 4.3 between the plates. As a consequence, the energy stored in the capacitor quadruples. What will the charge be after the dielectric is inserted? (2)A metal sphere of ...
February 21, 2010 by Sandhya

Physic II
Suppose a capacitor having a capacitance of C fully charged to a voltage V and then discharged through a resistor R. Derive the equation (in terms of C,V,and R) that shows how long a time the capacitor will take to lose 45 % of its charge.
March 13, 2014 by Buline

Physics
In the following circuit R_1=3 Ohm, R_2=10 Ohm, C=0.003 Farad, V=5 Volts. At time t =0 we connect the power supply to the circuit. At t=0 the capacitor is uncharged. (a) What is the time constant tau (in seconds) to charge up the capacitor? (b) What is the electric potential ...
May 6, 2013 by Phy

science
a 75.0 pF capacitor is connected to a 12V battery. How much charge is on each plate?
May 21, 2010 by Anonymous

Physics
The electric field between the plates of a paper-separated (K = 3.75) capacitor is 9.21 104 V/m. The plates are 2.05 mm apart and the charge on each plate is 0.775 C. Determine the capacitance of this capacitor.
February 9, 2012 by Conor

physics
A source of instantaneous potential V = 10sin(50pi t) is connected across a capacitor of capacitence 1 times 10power negative 6 F. calculate the maximum value of the current and phase difference between the current and the potential difference?
April 18, 2012 by Allan

physics
The magnetic field in the region shown below is increasing by 5 T/s. The circuit shown (with R=25 , C=55 F, dimensions 1 m by 2 m) is inserted into the region as shown. The capacitor is initially uncharged. 1. How long will it take the capacitor to charge to 25% of its final ...
November 12, 2011 by sonia

Physics
A tunable capacitor (with variable capacitance) is charged by a U0=12 V battery and then is connected in parallel to a R=3 Ω resistor. The capacitance C(t) of the capacitor is controlled so that the current in the circuit remains constant at all times. What is the power (...
May 31, 2013 by Mathslover

physics
A tunable capacitor (with variable capacitance) is charged by a U0=12 V battery and then is connected in parallel to a R=3 Ω resistor. The capacitance C(t) of the capacitor is controlled so that the current in the circuit remains constant at all times. What is the power (...
June 2, 2013 by ded

Physics- Repost (Answer did not make sense)
In the circuit below, at time t = 0, the switch is closed, causing the capacitors to charge. The voltage across the battery is 12 V The circuit: flickr. com/photos/ 68751220@N03 /6848519773/ A)Calculate the time constant for the RC circuit B)Calculate the time required for the...
July 28, 2012 by Dan

heeeelp physics
A tunable capacitor (with variable capacitance) is charged by a U 0=12 V battery and then is connected in parallel to a R=3 Ω resistor. The capacitance C(t) of the capacitor is controlled so that the current in the circuit remains constant at all times. What is the power...
May 30, 2013 by andrew

physics so confused
1. A 26.0-Ω resistor, a 12.0-F capacitor, and a 17.0-mH inductor are connected in series with a 150-V generator. (a) At what frequency is the current a maximum?
March 21, 2012 by linds

Physics
what potential difference U is needed such that a point charge (q) between a parralel plate capacitor leaves it at the upper right corner. the capacitor is seperated by a distance "d" and the length of each plate is "l"
September 25, 2010 by Rohan

heeelp tooough physics
A tunable capacitor (with variable capacitance) is charged by a U 0=12 V battery and then is connected in parallel to a R=3 Ω resistor. The capacitance C(t) of the capacitor is controlled so that the current in the circuit remains constant at all times. What is the power...
June 1, 2013 by andrew

Physics
You have a circuit with a 4 uF capacitor connected in series to 2 capacitors connected in parallel (2 uF and 1.5 uF). The battery is 12 V. The first question asked what the circuit's equivalence capacitance was. I calculated it to be 1.9 uF, which is correct. The next question...
February 19, 2011 by Jon

PHYSICS
(b) Two charges of magnitude 0.610 gC and 0.490 gC are in a liquid dielectric with dielectric constant e = 45.0. The charges are separated by a distance of 0.290 m. (i) What is the size of the electric force between the charges? (ii) By how many times is the electric force ...
May 1, 2010 by Gary

Physics
How long will it take the voltage across the capacitor in an RC circuit to discharge 75% of its initial charged voltage if the resistor has a resistance of 450 kilo-Ohms and the capacitor has a capacitance of 49 micro-farads? How do I solve this problem? Thanks!
August 1, 2014 by Greg

Physics
In lightning storms, the potential difference between the earth and the bottom of the thunderclouds can be as high as 35000000 V.The bottoms of the thunderclouds are typically 1500 m above the earth, and can have an area of 110 km^2. Modelling the earth-cloud system as a huge ...
February 4, 2008 by jenish

College physics
Two 2.4 cm diameter disks spaced 1.5 mm apart form a parallel-plate capacitor. The electric field between the disks is 4.310^5 V/m. What is the voltage across the capacitor? How much charge is on each disk? An electron is launched from the negative plate. It strikes the ...
July 14, 2010 by Emoni

Physics
The figure shows an electron entering a parallel-plate capacitor with a speed of 5.65106 . The electric field of the capacitor has deflected the electron downward by a distance of 0.618 at the point where the electron exits the capacitor.
February 2, 2012 by Nas

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