Capasitors

Generally capacitors contains of two insulated conductor a and b with many form. We assume that of the whole of two plate isolate from their environment and bring of electric load with the similar quantity but with apposite charge, +q and –q. Every flow from a will ended in b, the next assumption all the conductor of a and b locate in vacuum place.

We don’t need to charge each conductor separately, but just connected to apposite battery pole. Loaded charge automatically will same but apposite. For a while we assume that q and V is proportionally,

Q = CV

Where C is comparison factor called as Capacitance from that capacitor. We assume for a while that C depend on the form and relative position from those conductors. C depend on the conductor medium places, but for a while that medium is vacuum.

SI unit for capacitance is coulomb/volt. Special unit like Farad use to express this SI unit. So 1 farad = 1 coulomb/volt.

Capacitors is an electronic part that is very important for engineer and physics. A capacitor can result electric field configuration for many purposes. Capacitor can keep an electric power that accumulate between the plates that actually keep on the electric field, whatever those field is produced. On the electronic age is nothing without capacitors. Capacitors are used in many appliance to reduce the voltage fluctuation on power supply, forward a pulse to result or detect electromagnetic oscillation on radio frequency, to provide electronic time delay and in many other purposes.

Chinese Product Make Other Product Price Down

If we watch the change on the product, price and market there are a shift from product with high technology with a high price to product with middle quality but with cheap price. You maybe have enjoyed of the price down of electronic product like USB storage and phone cell price. When the first time USB storage is launched, this product is sell very expensive, for a piece USB storage with capacity just 125 MB must expense for Rp. 125,000. Then Chinese product is also launch with cheaper price, for capacity until 250 MB the price can buy just by Rp. 100,000 then the capacity and price like compete, currently we can buy a USB storage with capacity until 2 GB with the price just Rp. 80,000 only.

Phone cell product seem will follow the same pattern, you also have known this, to have a smart phone from Nokia you must expense for about Rp. 8,000,000, then china product also sell Black Berry from China with just price of Rp. 500,000 you can have similar type of original Black Berry. Wow…….

Competition will always run, the original Black Berry will downward price and may until to just Rp. 2,000,000 only or their product will no longer exist. Phone cell technology from china also will improve, when they launch their first Black Berry product may contain not perfect feature but they always improve their technology and at the end the quality and feature will similar with the original Black Berry but with very cheap price may be only Rp. 1,000,000 you will get Black Berry with complete feature and function. Just only the time will prove it.

Why this product merge so cheap, because human resources paid with very cheap, people feel bored to be employee, they feel unsatisfied with their salary, they tend to create their product by them self and will always merge many imitate product with similar quality, and may the same quality but with very cheap price.