Forsimplicity, take a parallel plate capacitor.
It consists of two parallel plates displaced by certain but very small distance. This distance is covered by a dielectric which blocks the flows of electrons when applied to a potential difference (voltage) ---- it is the property of dielectric material.
When we suddenly applies potential difference across the two parallel plates at that instant, sudden current (almost equal to s/c current) flows from one plate to another plate through the dielectric due to its unability to oppose this sudden flow as its region of depth (length of spreading) is very low. when the time is going on, it tries to oppose the flow of electrons by which these electrons deposited on the parallel plates as they have large surface area and provides sufficient place to deposit the opposed electrons by the dielectric material placed between the two plates. When they deposit, they creats some potential across the plates. As the time is going more and more the strength of opposition made by the dielectric increases there by depositing more and more electrons on one of the plate (depending on the connections). This increase in depositon of more and more electrons in creases the creation of potential difference between the plates. - - - in this way the capacitor is charging to the supply voltage.
THIS IS MY IDEA ONLY, IF YOU FOUND IT IS FALSE, PLEASE DRAFT CURRECT ANSWER.
Regards,
Masti DOG.
Yes, light is a physical phenomenon that consists of electromagnetic waves.
When determining the size of a capacitor for your project, consider factors such as the voltage requirements, capacitance value, size constraints, and the intended use of the capacitor. It is important to choose a capacitor that can handle the voltage and provide the necessary capacitance for your project while fitting within the physical space available.
The phenomenon you're referring to could be caused by a variety of factors such as physical laws, chemical reactions, biological processes, or environmental conditions. It ultimately depends on the specific phenomenon you're asking about.
A brief statement summarizing many observations of a physical phenomenon is called a scientific theory. It is a well-established explanation for a wide range of observations based on evidence, experimentation, and analysis.
Any physical phenomenon that varies inversely with the square of the distance from the source follows the inverse square law. This means that as the distance from the source doubles, the intensity or strength of the phenomenon decreases by a factor of four. Examples include the intensity of light, gravity, and electromagnetic radiation.
There are several photos of variable capacitors on this site: www.orenelliottproducts.com
Yes, capacitors come in various sizes, both in terms of physical dimensions and capacitance values. They can range from tiny surface-mount capacitors used in electronic circuits to large capacitor banks used in power systems. The size and type depend on the application, voltage rating, and capacitance needed for the circuit.
Titanium oxide capacitors are electrolytic capacitors that use titanium as one of the electrodes. They are known for their stability, high capacitance values, and low leakage current. These capacitors are represented in circuit diagrams using the symbol for a capacitor with a "+" and "-" sign to denote the polarity.
Super capacitor have high capacitance compare to normal capacitor. Super capacitor use two layer of dielectric medium whereas in normal capacitor single medium dielectric. Because of this super capacitor use as alternate power source for RTC when computer is off.
Depending on the make and model of the air conditioner. It is probably your blower motor. There are two, possibly three items to consider. The motor, the start capacitor and the run capacitor. Some systems will have just the motor and the start capacitor. Some have just the motor and the run capacitor. Usually (not always) the capacitor will show physical signs of failure. Burned terminals, swelling or white stuff coming out of the top. Expect to pay $30 for the capacitors and several hundred for a new blower motor.
The physical appearance varies depending on the type of capacitor in question. The main similarity between the different types is that they have two leads.Electrolytic Aluminum Capacitors come as metal cans in appearance, and can be radial (both leads at the bottom) or axial (one lead at the top, one lead at the bottom). This type of capacitor is also polarized and typically will have a symbol indicating which lead should be connected to ground (most common) or a symbol for the lead that connects to the voltage source. Typically there will be a capacitance rating in Farads on the capacitor.Ceramic Capacitors come in many different appearances, one commonly found is a disc shape. These capacitors are not polarity sensitive and thus have no markings indicating polarity. They are smaller than Electrolytic Capacitors and usually do not have enough space to display a Farad rating but will use a numeric code (similar to color bands on resistors)There are many other types of capacitors and also "homebrew" capacitors composed of soda bottles and tin foil, which makes giving an exact answer to "What does a capacitor look like?" difficult.
One interpretation is that if you take a capacitor that is not charged, it needs to take some current before any voltage appears across it. Therefore the current must precede the voltage.
The reason that some capacitors are polarized has to do with their physical construction. A common type of polarized capacitor is the aluminum electrolytic capacitor. These capacitors use aluminum coated with a thin layer of aluminum oxide for one plate and a conductive solution as the other plate. This strategy yields very high capacitance in a small physical volume because the aluminum oxide dielectric layer can be made extremely thin. Unfortunately, this construction only allows bias in one direction (the aluminum with the aluminum oxide coating must be the anode) because reversing the bias causes the dielectric to break down. I believe that the chemical reaction that takes place is this: when the aluminum plate coated with aluminum oxide is given a negative charge, the Al+3 ions in the aluminum oxide are reduced back to aluminum metal (taking electrons from the plate). This liberates the oxygen from the aluminum oxide as a gas, which is why reverse-polarizing these capacitors produces out-gassing (and bursting of the physical package of the capacitor if there is no relief valve). Tantalum electrolytic capacitors have a conceptually similar design. The anode is a tantalum wire with an oxide layer as a dielectric. Subjecting these capacitors to reverse bias also breaks down the dielectric by reducing the tantalum ion back to tantalum metal.
This is a physical phenomenon.
To avoid that the plates touch each other. The better the dielectric, the closer the plates can be, thus making the electrostatic field on the opposite plates more intense, which allows for more electrons displaced via the charging circuit to the positive plate and more incomplete atoms (positive charges) left on the negative plate. Remember: Being the dielectric an isolator, there is NEVER current through the capacitor.
The only criteria governing capacitor size is; will it fit into the space on the circuit board.Capacitors produce a reactance that is measured in ohms - depending on the alternating frequency of the current flowing through them - and that reactance will produce heat.So, if you are designing equipment that will use a capacitor - or are replacing a defective capacitor - you must take into account how much energy it will produce as heat, that will have to be conducted away, otherwise the capacitor will burn up! So you must never use a capacitor that is physically too small for the job!The answer given above needs is partially correct in that it should also say that, as long as it will fit into the space available, you can use a capacitor of the same microfarad value that is physically bigger than the one that you are replacing but you should never use one that is physically smaller.It is also important to use the correct type of capacitor: it may not be safe to replace a non-electrolytic type by an electrolytic one, for instance.Not all capacitors are used in printed circuit boards. A capacitor used for motor starting also has to be matched exactly when replacing, as it also is engineer designed to the characteristics of the motor.
A capacitor is a device that stores an electrical charge, or if you prefer- resists any change in voltage applied to it. Capacitance is a measure of the size or ability of a capacitor to do that. This is the Farad