Saturday, November 29, 2008

physics query

wilton vil said... and gualberto




♥maAm sory heheheheh




♥1.+=+SHORT CIRCUIT is an electrical path in a circuit that causes most of the current to flow around or away from some other path in the circuit. or an accidental short circuits........ALSO , an abnormal connection of low resistance between two points of a circuit that usually causes a high, potentially damaging current to flow.......♥the common cause of unintentional short circuits in electrical devices is because of an accidental low-resistance connection between two nodes of an electrical circuit that are meant to be at different voltages..........




2. ♥=+=FUSE in electrical is a device used in electrical systems to protect against excessive current. it operates depends on how much current flows through......Manufacturers of fuses plot a time-current characteristic curve, which shows the time required to melt the fuse and the time required to clear the circuit for any given level of overload current..........when a person blow a fuse, often characterized as "fast-blow" or "slow-blow" or "time-delay", according to the time they take to respond to an over current condition. The selection of the characteristic depends on what equipment is being protected..........



.3.♥=+=THE CIRCUIT BREAKER WORKS can be used in the building office, house, industry and similar building .........an automatically-operated electrical switch designed to protect an electrical circuit from damage caused by overload or short circuit.♥ it protects equipment from an overload or short circuit,,,,



4.♥=+= AN OVERLOAD CIRCUIT IS a situation where an electrical machine or system is subjected to a greater load than it was designed for,.......



5.=+=Why will too many electrical devices operating at one time often blow a fuse? !↨♥because selection of the characteristic depends on what equipment is being protected. and it applied on motor circuits may have a time-delay characteristic, since the surge of current required at motor start soon decreases and is harmless to wiring and the motor. that’s why many electrical devices operating at one time often blow a fuse....and is highly needed in operating electrical circuit./......




.6.=+=♥What are the dangers of short circuit and overload?♥an electrical overload, it leads to excessive heating of the wires and a possibility of fire. In a short circuit, an accidental low-resistance connection between two nodes of an electrical circuit that are meant to be at different voltages. This results in an excessive electric current limited only by the the vein equivalent resistance of the rest of the network and potentially causes circuit damage, overheating, fire or explosion. Although usually the result of a fault, there are cases where short circuits are caused intentionally, for example, for the purpose of voltage-sensing crowbar circuit protectors. Short circuit is very malignant it can many lives and bring wreck to our properties. It can also cause a very big trouble not only to our family but out our community as well.Ö

♥so we must be careful in operating circuits because it will produce fire that is overload and it cause death to you, not only you but all of us.........


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GUALBERTO LANTAYA JR..... AND TO MY SCHOOL ...AND ALSO TO

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.ATEXACTLY....09:25♥♥♥♥