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a capacitor is used to store charge for longer period of time.in odder to understand that how a capacitor gets charged consider two parallel metal plates.these plates are neutral having equal amount of positive and negative charges.now connect these plates to the opposite terminals of a battery.the electrons present in the plate connected to the positive terminal of a battery will be attracted by the positive terminal leaving the plate positively charged.now these electrons are pushed by the battery to its negative terminal which repels these electrons to the plate connected to it making it negatively charged. now the battery is disconnected.so in this way the plates of a capacitor gets charged.as these plates have opposite charges stored on them force of attraction exist between them enabling a capacitor to store charge for longer periods of time.
Wiki User
∙ 11y ago
Wiki User
∙ 12y agoCapacitors don't really 'store charge'; they store energyin their electric field. When people describe capacitors as 'storing charge', what they really mean is that they 'separate' charge -there's actually no more charge on a 'charged' capacitor than there was before it became 'charged'.
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Does a charged capacitor have an identical level of charge on both plates?
yes but of differential sign
Is it possible to run 0.2 amps at 12 volts for 1 minute on a fairly small and cheap capacitor?
if the current is DC it won't flow once the capacitor is charged, if AC then it could be possible, it's 2.4W flowing but not used by the capacitor so shouldn't generate too much heat
What has happened when a light bulb has burn out?
it simply means that a wire from the light bulb is joined or connected to the charged plates of the capacitor.resulting to discharged of the capacitor.
How much charge flows from each terminal of a 16.0 V battery when it is connected to a 8.80 F capacitor?
if the capacitor is not initially charged then it will receive during its charging an electric charge Q given by Q=V/C=16/8.8 = 1.82 microcoulomb
Why capacitor is connected to earth in circuit?
when a capacitor is connected to earth the potential of capacitor becomes zero. as a result all the charge residing on the conductors of a capacitor passes away and the final charge on capacitor becomes zero
What will happen if you connect 12volt battery to a 240VOLT capacitor?
If the capacitor is charged then the battery will explode.
What happened if the capacitor is in line when there is no load?
When there is no load on a circuit with a capacitor in the line, no current will pass. The capacitor, if charged, will remain charged until a load is put on to the circuit at which time it will discharge its designed output voltage.
How can you identify that which plate of capacitor is positively charged?
FOR tESTING THE SIGN OF CHARGE ON BODY, a device called GOLD LEAF ELECTROSCOPE. When the disc of a positively charged is touched with any plate of the charge capacitor. IF the divergence of gold leaf increases, then the plate is positively charged and if the divergence in the leaf decrease then the plate of the capacitor is nagatively charged.
Charged capacitor connected with transmission line?
yes.
When a capacitor is charged after 1 time constant the v across the capacitor is?
Depending on the circuit, 63% of the available voltage.
What is the net charge on the charged capacitor?
there is no net charge on the capacitor because nomber of positive and negative charge and negetive are equal.
What type of capacitor should be charged slowly after not being used for a period to prevent damage if a sudden surge?
if exact replacement capacitors are not available,you should substitute it with a capacitor that has
Why do you connect a diode in parallel to a capacitor?
1. bec the capacitor not allow the current to pass through it after it has charged & it charged in no time ex:(10^-4 second). 2. because it is necessary to avoid wrong polarity by shorting the terminals of the capacitor and tripping the fuse.
What happened to the energy of the charged capacitor if the dielectric is kept?
English please. :)
When a circuit consists of a capacitor and a resistor in series with a voltage source and the voltage across the resistor becomes zero then the capacitor is?
fully charged.
1 For a parallel plate capacitor which is being charged out What the incorrect statement is?
Energy stored in the capacitor does not enter it through the connecting wire through the space around the wires and plates of capacitor.
What would happen to the current flow in a dc circuit when the capacitor is fully charged?
A capacitor charge as a time constant of R resistance C capacitance in ufd and it is defined as 63% for one time constant for the constant voltage source. Electronic engineers assume that a capacitor is fully charged by a 5 times constant. however mathematically speaking it will never be fully charged for obvious reasons. Therefore the answer is current will never stop/
