What is Discharge: Definition and 264 Discussions

A military discharge is given when a member of the armed forces is released from their obligation to serve. Each country's military has different types of discharge. They are generally based on whether the person completed their training and then fully and satisfactorily completed their term of service. Other types of discharge are based on factors such as the quality of the person's service, whether their service had to be ended prematurely due to humanitarian or medical reasons, whether the person had been found to have drug or alcohol dependency issues and whether they were complying with treatment and counseling, or whether the person had demerits or punishments for infractions or were convicted of any crimes. These factors affect whether they will be asked or allowed to re-enlist and whether they qualify for benefits after their discharge.

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  1. P

    Capacitor Discharge: Calculating Rate of Voltage Change and Time

    Homework Statement When a condenser discharges electricity, the instantaneous rate of change of the voltage is proportional to the voltage in the condenser. Suppose you have a discharging condenser and the instantaneous rate of change of the voltage is 1/100 of the voltage (in volts per...
  2. J

    RC circuit - Capacitor discharge

    When a capacitor discharges, the potential difference between its plates and the resistor's terminals is the same. Hence, \frac{Q}{C}=R \frac{dq}{dt} Solving this equation we get q(t)= Q_{0} exp \frac{t}{RC} Obviously, this isn't the solution. It is actually q(t)= Q_0 exp...
  3. A

    Troubleshooting Hydrogen Discharge Tubes: Potential Causes for Emission Stoppage

    Hi, I experimented with a hydrogen tube and after some time the emission stopped.could it be because all hydrogen atoms became completely ionized?
  4. L

    Finding Rate of Energy Loss in an RC Discharge Circuit

    Homework Statement In an RC discharge circuit, R= 2.5 X10^4 ohms and C=40 microfarad. The initial potential difference across C is 25 V. Find the rate at which energy is being lost by C at 0.5 seconds. Homework Equations The Attempt at a Solution Like in this case, I probably have...
  5. R

    Rate of discharge for a battery

    I am designing an electric vehicle and choosing the batteries. For this i want to model some inefficiencys into the batteries. I came across the formulae T=C/I^n where T=battery life C = capacitence I= current n= Peukert's number would 1.1 for n be ok for lithium ion, it seems to take quite...
  6. S

    Estimating discharge at the outflow structure of a lake

    I am a fisheries biologist interested in manipulating a lake level by about six inches via a box cement outlet structure on a small lake. The outlet structure is currently governed by two adjacent 5ft by 0.5ft dam boards,which have historically been removed one at a time in the spring and...
  7. A

    Capacitor discharge: how is it measured?

    This is the problem and it's actually in my calculus book to illustrate the concept of a limit in experiments: The flash unit on a camera operates by storing charge on a capacitor and releasing it suddenly when the flash is set off. The data in the table describe the charge Q remaining on the...
  8. R

    How do Capacitor Discharge Ignition Circuits work?

    I have been informed that such devices can produce large voltage sparks from low voltage power supplies, but i was always under the impression that capacitors discharge in a manner that is simply the opposite of the charge graph. 1)So how do these circuits work? and 2)Are the US navy using...
  9. H

    Venturi meter/ coefficient of discharge experiment

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  10. K

    What Are the RL Discharge Time Constants for Open and Closed Switch States?

    1. circuit consists of 10v supply, a switch, R1 (200ohm), R2 (100ohm) in series with a 1H inductance. with R3 (200ohm) across R1 and Inductance. I have to work out the time constants when switch is open and when closed. 2. when closed I have used 1 time constant = t = L/R, then 5 x L/R...
  11. J

    Discharging a Capacitor: How Long Does it Take?

    Homework Statement What is the shortest time after which there would be no measurable charge on a 5.0 microfarad capacitor that is charged, then discharged across a 2000 ohm resistance. a. 0.001 s b. 0.5 s c. 10 s d. 3600 s Homework Equations The Attempt at a Solution According to the time...
  12. S

    Power supply input discharge voltage

    I would appreciate any help, opinions or explanations on this as I am receiveing many different views currently. I measure the discharge voltage of a single power supply (laptop ac charger) using a digital chart recorder. On a trial and error basis I achieve the data as close as possible to...
  13. K

    Discharge of a non-ideal capacitor having a ‘leaky’ dielectric

    1. A non-ideal capacitor having a ‘leaky’ dielectric where RL =1.5 x1015 which is the leakage resistance measured across the dielectric. A100 pF parallel-plate capacitor has a mica dielectric of relative permittivity år = 12 and resistivity of ñ = 1014 Ù m. The capacitor holds a charge of 10...
  14. N

    Capacitor discharge through a coil, need to find current

    I'm designing a circuit to discharge a capacitor though a coil of wire to make a large magnetic field, which is basically an undriven RLC circuit which starts out with a charged capacitor in series with an inductor and a resistor (the coil having a certain resistance in addition to its...
  15. J

    RC Circuit discharge question -

    RC Circuit discharge question - test prep for tomorrow Homework Statement A charged 6\muF capacitor is discharged across a 2\Omega resistor. How long does it take to lose half its stored energy? Homework Equations ...so many: Q = CV V = IR W = I2R U = 1/2 QV V = V0e-t/RC The...
  16. U

    Effect of Faucet Location on Water Discharge from a Tank

    Homework Statement This is more of a question: In class, we solved an example with water leaving a tank from a faucet on the side and near the bottom. The result was v=(2gz)^(1/2)... the Torricelli equation. What I am wondering is if the solution would change if the faucet were located at...
  17. W

    How Much Charge Remains on a Capacitor After 4 Milliseconds in a Circuit?

    Homework Statement A capacitor is charged to 1 coulomb; the capacitance is 6.00×10-5 farads. Then a switch is closed which puts the capacitor in a closed circuit with a resistor; the resistance is 9.20×10^1 ohms. Calculate the charge on the capacitor after 4.00 milliseconds. (1 ms = 0.001 s)...
  18. F

    Capacitor Discharge Time: How Long to Reach 99% Charge?

    capacitor discharge? Homework Statement A 1.4 uF capacitor, initially uncharged, is connected in series with a 10 k ohms resistor and a 6 V battery of negligible internal resistance. How long does it take the capacitor to reach 99% of its final charge? this is part b. i already...
  19. R

    Static Electricity discharge question

    Why is it that someone who discharges static electricity feels a sting but the person who is receiving the static electricity doesn't feel anything? Thanks
  20. A

    Ohmic Losses In Capacitor Discharge

    Let's say that we have two capacitive sources of power: 1) ten parallel 450V 1800uF 138.8mOhm-ESR capacitors 2) one 450V 18000uF 13.88mOhm-ESR capacitor Both sources contain 1,823J of energy. The source containing ten capacitors is advantageous for my purposes due to the fact that the...
  21. P

    Harm of discharge of thunder in village is worse than cities?

    hi. my question:why the harm of discharge of thunder in village is worse than cities?
  22. A

    Capacitor Discharge equation help

    I have been testing this equation with various different capacitors and capacitor bank values for V, R and C. I have found that when combining two capacitors in series (V doubles, C is divided in half, R is doubled) the following equation yields the same I-curve over t as a single capacitor...
  23. M

    Capacitor Basics: Charge & Discharge Operations

    hi ,to all forums member from mahek.please help me out for understanding the basic concept of capicitor and homework it,s charge and discharging operation of it.
  24. DaTario

    Metalic apparatus to receive the discharge of a lightning near houses

    Hi All, I would like to know what is the main reason to build those metalic apparatus to receive the discharge of a lightning near houses. I am concerned with its shape and its physical explanation. Any help will be welcome, Thank you all Best wishes DaTario
  25. K

    Capacitor Discharge: Calculating Time to 0.8μC

    Homework Statement A 10 microfarad capacitor is initally charged to 15 volts. If the capacitor then discharges through a 12kohm resistor how long before the charge stored has falled to 0.8 x 10^-4 C? Homework Equations Q=CV Q= Q_0 x e ^(-t/RC) The Attempt at a Solution...
  26. G

    Solving Inductor 12 Henry Discharge: R Calculations

    Homework Statement Inductor 12 Henry, energy supply is Emf knot. At t=0, the switch is opened which leads to rapid discharge along a resistor. The flash from the discharge lasted 50 ms. What is the resistance of the resistor? Homework Equations I know to use i=Ie^(-R/L) t but what...
  27. I

    How to slow down the charge & discharge process in RC battery

    Homework Statement I am trying hard to figure it out how to slow down the charge and discharge current in the RC circuit. If i put the big resistor, it takes long to charge but there is barely any current you can see and also when it discharges. What I am trying to do is, to slow down the...
  28. G

    [Q]Queation about Photon and Electric discharge.

    Hi, I just wander what hapeens if photon which energy is higher than difference of adjacent energy levels collide with atom? How does Excess energy go? transmiting atom by form of photon or giving motional energy to the atom? Second Question is What does process ocurrs when enough...
  29. X

    RL Circuit Discharge and RCL Circuit

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  30. D

    MATLAB Need help modeling a Pulsed plasma thruster discharge circuit using matlab

    Hi everyone, I'm not sure if this is a basic EE problem as I'm in aerospace and I would like to apologize if i posted in the wrong forum. I've attached a circuit diagram of my design. The capacitors and the 2 higher resistors are of variable values. The switch and the lower resistor...
  31. S

    Whos right? - capacitor to capacitor discharge.

    I read on another forum, some person says (read below) when you charge one cap, then discharge into another, there is 50% efficiency loss? I think this is wrong, as the only losses I can think of, are due to the caps ESR when there is a voltage difference between the caps. Can someone help...
  32. N

    Discharge coefficient

    Hi all I was wondering if anyone could help me with calculating or finding the discharge coefficient for a fully developed turbulent flow through a vena contracta many thanks nar
  33. A

    Calculate the discharge between two pipes

    Hi, I have a question, it is related to flows between two resorvoirs where I need to calculate the discharge between two pipes, with different pipe diameters. The problem I have come across is where there is an expansion in the pipe size from 250mm diameter to 300mm, the formula states...
  34. K

    Pumps: Head, Discharge & Lubrication Oil Recommendations

    Hi all, I want to know the details of the pumps such as Which of the pump has the highest head? Which one has the Highest Discharge? The one highly recommended for lubrication oils? What is the real physical meaning of head? The relation between Head and Discharge in physical...
  35. Pythagorean

    How does resistor size affect capacitor discharge time?

    Ok, so I've heard two conflicting things about real capacitors and I'm trying to clear up my understanding. It's possible they were in different contexts. This pertains to a RC circuit. It's a real capacitor so it will have some internal resistance too. It's also a high-voltage capacitor...
  36. T

    How Does a Capacitor Discharge Over Time?

    Hi, I am studying an engineering program in university. I have a piece of lab coursework to do and I am struggling to find information on it. The lab report was based on 'The discharge of a capacitor with time using an oscilloscope' It sounds silly but what is the theory of a capacitor...
  37. ShawnD

    Charged inductor with no discharge path?

    Suppose I have a simple DC circuit. If I wrap the wire around a piece of iron, I create an inductor. Having a steady flow of current creates a steady magnetic field around the piece of iron. If I remove the power supply and put a wire in its place, the magnetic field will collapse and send a...
  38. S

    Best way to discharge a capacitor

    Homework Statement What is the best way to discharge the capacitor? Explain Homework Equations The Attempt at a Solution I know two ways but I'm not sure if they're the "best" ways. One is by touching both wires of the capacitor to something made out of metal. The other is holding...
  39. X

    Understanding the Impact of ESD on Aircraft and Components: Expert Insights

    How does ESD affect Aircraft and Aircraft Components?? Does anyone know?? Thanks...
  40. H

    Capacitor Discharge problem

    Homework Statement A capacitor is charged to 1 coulomb; the capacitance is 8.00×10-5 farads. Then a switch is closed which puts the capacitor in a closed circuit with a resistor; the resistance is 8.60×101 ohms. Calculate the charge on the capacitor after 4.00 milliseconds. (1 ms = 0.001 s)...
  41. P

    Solve RC Circuit Discharge Homework: 6V, 60Ω, 0.02F

    Homework Statement A circuit consists of 3 components connected between 2 terminals: A 6 V source, a 60 ohms resistor and a 0.02 F capacitor. The capacitor is initially uncharged. The voltage source is turned on. What is the current flowing through the above capacitor after a very long time...
  42. V

    Analyzing Discharge Circuit with Capacitor and Voltage Source: Finding i(t)

    hi all, wonderign whether you can help with this problem with capacitor discharging. take a look at the pic the question is In the circuit shown above, the switch has been in the upper position for a long time and moves to the lower position at t = 0. Find i(t). Basically, first i...
  43. L

    How to Construct an Ozone Generator Using a Discharge Tube?

    Ozone Generation (Help required) I am working on the project of "Ozone generation". Generation of ozone is done using discharge tube working at around 6KV. But the source from where I got the details of the project doesn't provided the information on the construction part of it. Please...
  44. R

    Where does the energy in a discharged capacitor go?

    One of the discussion questions (ie. questions to think about) on a lab that I just did in physics asked where the energy in a charged capacitor goes when the capacitor is discharged. I know the energy is calculated using 1/2*C*(dV)^2, but I cannot figure out where this energy is transferred as...
  45. M

    Discharge a magnetized bearing

    WE're usign a steel ball bearing for our physics rollercoaster project, and we happened to store the ball ontop of a decently strong magnet over the course of a few nights, and we believe that the ball is magnetized because the ball slows down at parts of our rollercoaster where there is any...
  46. M

    When exactly does a capacitator discharge?

    I have a few questions concerning capacitators. 1.) When exactly does a capacitator discharge. Is it only when its voltage equals that of the power source and cancel each other out or is the capacitator always discharging at a slow rate. 2.) I read that when you use a capacitator in...
  47. J

    Questions About Electromagnetic Radiation from Electricl Discharge

    Hi all, I am a newbie reseacher postgrad. My work will be the title above and is anyone know whether it falls in Quantum Mechanics or general Electromagnetic physics? Actually what is so different in Quantum Mechanics since I saw it seems having some corrrection in EM radiation/photon...
  48. D

    Safe Discharge of Monitor Capacitors: What's the Best Method?

    My buddy works at an extremely small (4 guys and a room) computer parts recycling and disposal place. They want to be able to take apart old monitors but are afraid of the potential shock from the main caps. I am told that the voltage can get up to 25,000 volts (I'm not sure of this value) and...
  49. A

    Electric Discharge Patterns: Coincidence or Controlled Pathways?

    I have just now seen this long exposure photo on http://en.wikipedia.org/wiki/High_voltage" from an electric discharge. Is it just me or does it appear that each discharge is taking an almost exact path down the length of the arc. I need to know if this is just a coincidence, and if not...
  50. J

    Exploring Electric and Magnetic Fields in a Spark Gap Discharge

    Hello All, I have another set of quick questions that may or may not have a quick answer :smile:. When a simple two-electrode spark gap discharges, what shape do the eclectic and magnetic fields take on? If I were to draw the electric and magnetic field vectors, would they be pointing...
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