who was the inventor of electrical current, voltage and watt?
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Alessandro Volta played with batteries - voltage\nAndre-Marie Ampere experimented with Current\nJames Watt measured and defined power - Watts
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Michael Faraday (1791-1867) \nBritish physicist and chemist, best known for his discoveries of electromagnetic induction and of the laws of electrolysis. His biggest breakthrough in electricity was his invention of the electric motor.\nOh check out link on Peter Barlow too!
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Watt is a unit of power....ampere is a unit of current.\n\nPOWER = Current X Voltage
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Actually Ohm's law is recorded as I = V/R.  V is for volts.  I is used for current because, believe it or not all great scientists spoke english as their mother tongue.\n\nSome of the worlds most famous scientists also came from countries like France (Coulombe), Germany (Hertz), etc...\n\nI from current comes from the german word Intensität which means intensity.  It was a way of describing the change of charge (Q) with respect to time.
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There is no such thing.\n\nCurrent is current, measured in amperes. Watts are power.\n\nPower is a measure of work per unit time. One watt (of power) is one joule (of work) per second.\n\nOne ampere (of current) is one Coulomb (of electrical charge) per second.\n\nIt takes one joule of work to push one Coulomb of charge through one volt.\n\nAnd finally, a watt-hour is an amount of work--the power of one watt for one hour. It is 3600 joules.
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http://en.wikipedia.org/wiki/James_Watt
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http://science.howstuffworks.com/electricity.htm
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He invented the world's first alternating current (AC) radio tube which enabled radios to be powered by ordinary household current.
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Thomas Edison invented MANY things in his life:\n\n1. Incandescent lamp (aka the light bulb)\n2. Invented the microphone inside of telephones\n3. The locomotive train was a biggie.
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Designer, inventor and innovator Nikola Tesla.
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Most notable was Watt's 1769 patent for a separate condenser connected to a cylinder by a valve. Unlike Newcomen's engine, Watt's design had a condenser that could be cool while the cylinder was hot.\nFor a complete history of the steam engine see link below
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At the 1893 World's Fair, the World's Columbian Exposition in Chicago, an international exposition was held which for the first time devoted a building to electrical exhibits. It was a historic event as Tesla and George Westinghouse introduced visitors to AC power by using it to illuminate the Exposition. On display were Tesla's fluorescent lights and single node bulbs. Tesla also explained the principles of the rotating magnetic field and induction motor by demonstrating how to make an egg made of copper stand on end in his demonstration of the device he constructed known as the "Egg of Columbus".
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Philo T. Farnsworth \nhttp://www.ideafinder.com/history/inventors/farnsworth.htm
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A very early form of electric energy was the ancient egyptians made simple batteries from clay pots, copper rods and lemon juice. Probaly for primitive polarity experiments. Electricity was probaly first used practicaly by thomas edison when he created the lightbulb. The cathode ray tube was also a great success, made in the late 19th early 20th century. When they fired electrons in a contained glass tubs a black spot would show up on a far end. This idea eventualy evolved into the television. G.Boole a scientist in the 18th century created a form of math called Boolean Logic, this math has been used in circuit boards and electronics to this day. He also created a computational machine. It was far more mechanical than electronic however.
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It wasn't really invented by Benjamin Franklyn but it was discovered by him. He was the first to realise that lightning was a power that somehow could be harnessed for the good of mankind. It was other scientists in Europe who actually did harness the power. But before all that, there were parlor toys people used to catch static electricity and show sparks but that type is not powerful.Edison had nothing to do with the creation of electricity but his genius invented a ton of stuff for us to use it in.
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Ampacity is the amount of current a wire or device can handle. A watt hour meter socket records how much current has passed through that socket.\n\nWatt (power)= voltage x Current\nWatt-hour (energy) = voltage x current x time\n\nVoltage is constant. So if you have something in a socket that records 1 watt hour, it used 1 watt for one hour. or 1 watt/120V = .008 amp hours.\n\nbut to answer your question a device can only handle so much current, a typical socket is rated for 15-20 amps.
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Because this convention was defined before the electron was discovered. Benjamin Franklin was experimenting with static electricity in the mid 1700's and decided that the charge on a glass rod was "positive". \n\nIn the late 1800's experimenters were able to make electricity flow in a vacuum (cathode rays) and discovered that the current was carried by negatively charged particles, which were eventually named "electrons".