Coil

Have you ever heard of an AC motor? Probably not. What about a radio? These are things you probably use everyday. The inventor of the AC motor and radio was Nikola Tesla. One of his inventions, the Tesla Coil, was used in early radio antennas. He was a brilliant man with a powerful imagination. He won the ‘war of currents’ and made lighting. And this is his story. He was born in July of 1856, in the small town of Gospic. He was named after his father, Nikola Tesla. The last name…

2 Copper is a good conductor of electricity. Copper is good conductor of electricity because it contains free electrons. Copper has one free electron per atom. The free electron concentration in copper is 8.5 x 1028 per m3. The electrons start flowing as soon as the switch is closed. But the electrons themselves travel much more slowly. So how does the current come on everywhere as soon as the switch is closed? It is because the free electrons are already spread throughout the wire. As soon as…

4c hair is the most tightly coiled of all hair types. The tightness of the coils means that 4c hair has a tremendous about of shrinkage. It is quite common for most naturals with type 4c hair to experience extreme shrinkage (70% or more), causing it to appear much shorter than it actually is. When 4c hair is in its natural state i.e. freshly washed and without product, a defined curl is not evident. The tightness of 4c coils also means that naturals with this hair type, typically have very dense…

The coils are activated automatically one phase after the other by the drive electronics as organised by the hall effect sensors. This motor acts in a similar way to the three phase synchronous motors that utilise their own variable frequency drive. Contrast to this system, the Brushed DC motors use a rotating set of wire coils which is commonly referred to as the armature, and this acts as an electromagnet with two…

Determining Right Mattress: Type, Size, Firmness and personal preferences Get mattress frame might be simple; all you have to do is choose when one sees most appealing to you. When buying out mattress you wish to huge careful, as that is what you are going to be sleeping on for following years. Plenty of factors you have to consider when picking a mattress that suits you include size, firmness, type and your personal preferences. Size: There are plenty of various sized mattress that you will…

In is day and age there is a constant push and pull against smoking tobacco products. One of the main opposers is the electronic cigarette market and community. Now, let us get this straight first vaping “e-cigs” as they are called are a safer and notably healthier than smoking cigarettes. They give you the satisfaction of having your nicotine fix as well as allowing your body to heal from your time spent smoking. Due to the fact that you are dealing with an electrical device some e-cigarette…

stable one, while tritium has a half-life of roughly twelve years, making it slightly radioactive (Unterweger et al.; Wanjek). However, tritium has a higher binding energy than deuterium making it a more efficient fuel (Watkins). The deuterium-tritium reaction has a yield of roughly 17.6 MeV whereas the deuterium-deuterium reaction only has a yield of about 3.65 MeV. Still, the DT reaction has its disadvantages. For one, in the DT reaction about 80% of the energy is stored in a high-energy…

He came to the United States in 1884 and worked for some time with Thomas Edison before they both parted ways. He sold many patent rights, including those to his alternating-current machinery, to George Westinghouse. His invention the tesla coil that he built in 1891 is still used in radio technology to this day. Tesla eventually died in New York City on January 7, 1943. Tesla didn't get as many patents as Edison did, he only obtained around 300 patents and sold his Alternating Current…

to sue, major companies that host concerts and tours would be losing money on a regular basis. Idea: One of the materials used in a speaker are insulated copper wires, and they are used specifically for the voice coil; the copper wires are placed around a plastic bobbin of the voice coil.…

Nikola Tesla was a phenomenal engineer and inventor, who may have had some mental issues but never let that prevent him from doing amazing things. My interest in Nikola Tesla comes from his work including electric power. As an electrical engineer I am obviously interested in electricity myself. When he was nineteen years of age he started studying electrical engineering at Polytechnic Institute at Graz in Austria. There he was an excellent student. In June of 1884, Tesla traveled to New York…