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CAPACITOR
Explanation:
An interesting property of capacitors is that they will block DC after they become charged, but will (for the most part) allow AC to flow through. When a capacitor is fully discharged, DC can flow through it freely, but as it is doing so, the cap is gradually becoming charged. Finally, when it has reached its storage limit, the cap will not allow any more electricity to flow through it, and will act as a blocker on the circuit. This can be observed if you simply wire a capacitor in series with a simple circuit connecting a battery to a light. When the circuit first comes on, the light will turn on, but after some time (when the cap becomes fully charged) it will turn off. Exactly how long it takes this to happen depends on the capacitance of the cap; With very low-capacitance caps, it will probably happen faster than your eye can perceive, but it still will happen. If you remove the battery and simply leave the cap connected to the light, the light will turn on again as the cap flows into itself, acting like a battery, and the light will stay on until the cap fully discharges. So a cap blocks DC; If you think about it for a moment, you should be able to understand why they allow AC to pass through: AC keeps reversing its polarity. As long as the AC switches fast enough to prevent the cap from becoming fully charged in any direction, then the cap will partially charge in one direction, and as the AC polarity reverses, the cap will start to discharge, then charge in the opposite direction. Very low-capacitance caps may partially block the AC because they become fully loaded before the AC cycle is complete, however. TOO many words for an explanation yes it block DC and it acts as a storage of energy. charged or not charged it will block dc IF THE DC changes then more or less it will pass this levels because varying DC is AC after all,
What else can I help you with?
What is the use of coupling capacitor?
It allows AC current to go through, but blocks DC current.
A device which changes ac to DC is known as?
a device which changes ac to dc is known as 'conevrter' a device which changes dc to ac is known as 'inverter'
Does a photovoltaic cell produces AC electric current?
The panel itself produces DC and if it is connected to mains electricity it needs a separate converter to change the current to AC.
What do you mean the word diode which is used in electronics?
Diode is a Two terminal device which allows flow of curent in forward direction that means it converts DC to AC
When using electronics what device is capable of changing DC to AC?
A device called a power inverter.In old vacuum tube radios an electromechanical device called a vibrator was used.Another device is a motor-generator using a DC motor and an AC generator.
Electric device blocks dc but allows ac?
A capacitor blocks DC but allows AC.
The electric device which blocks DC but allows AC is called?
A capacitor is a device which blocks DC, but allows AC. When a capacitor is completely charged it does not allow current to pass through it. Initially when capacitor starts charging it has maximum current which flows and voltage is minimum, during charging current decreases with time and voltage increases. When capacitor is completely charged, it has maximum voltage and minimum current. However the AC has both positive and negative half cycles, during positive half cycle capacitor starts charging but during negative half cycle it discharges, and hence it doesn't get fully charged at AC, and current always flows through it.
What is the use of coupling capacitor?
It allows AC current to go through, but blocks DC current.
How can a normal person understands a embedded programming?
Simply how capacitor blocks dc and allows ac after charging?
Device that converts energy of motion into an electrical energy?
An electrical generator, these can produce AC or DC electric current.
What is the definition of AC generator?
An electric device that produces an electric current that reverses direction many times per second. Also called a synchronous generator.
What device permits electrical energy to be transferred from one AC to another without direct connection between them?
An electric transformer is the device that allows electrical energy to be transferred between two AC circuits without a direct electrical connection. This is achieved through electromagnetic induction, where changing currents in one coil induce a voltage in another coil.
A device which changes ac to DC is known as?
a device which changes ac to dc is known as 'conevrter' a device which changes dc to ac is known as 'inverter'
Which electric shaver runs on a battery and an electrical cord?
Panasonic and Phillips manufacturer electric shavers (with oscillating or rotating blades) that operate on AC or batteries. However, most electric shavers come with a DC powered device.
Why capacitor used in a DC inverter?
capacitor is component used to store and release the electric charge.and also it has feature to block the dc but bypass ac.and inverter is device which converts ac to dc and then again ac
What is AC motor and DC motor?
AC stands for alternating current, and DC is direct current. A motor is a device that uses electrical energy to spin. An AC motor uses AC voltage, and a DC motor uses DC voltage. http://ezinearticles.com/?The-Difference-Between-AC-and-DC-Electric-Motors&id=193767
What is the function of an AC power switch and how does it contribute to the operation of electronic devices?
The function of an AC power switch is to control the flow of electricity to an electronic device. It allows the user to turn the device on or off. By using the power switch, the user can easily start or stop the operation of the electronic device, helping to conserve energy and prevent damage from power surges.
