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In which year did Nikola Tesla invent the Tesla coil, an induction coil widely used in radio technology?

In which year did Nikola Tesla invent the Tesla coil, an induction coil widely used in radio technology? Correct Answer 1891

Nikola Tesla, Serbian American inventor, and engineer invented the Tesla coil, an induction coil widely used in radio technology and television sets and other electronic equipment in 1891. He is also discovered and patented the rotating magnetic field, the basis of most alternating-current machinery.

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In the question below, a statement is given followed by three courses of actions numbered I, II and III. On the basis of the information given, you have to assume everything in the statement to be true, and then decide which of the suggested course of action logically follow (s) for pursuing. Statement: Tesla and its CEO Elon Musk have agreed to pay a total of $40 million and make a series of concessions to settle a government lawsuit alleging Musk duped investors with misleading statements about a proposed buyout of the company. The settlement with the Securities and Exchange Commission allows Musk to remain CEO of the electric car company but requires him to relinquish his role as chairman for at least three years.  Courses of action: I. Tesla must hire an independent chairman to oversee the company, something that should please a number of shareholders who have criticised Tesla's board for being too beholden to Musk.  II. The deal could remove one cloud that hangs over Tesla. Investors fretted about the company's ability to cope without Musk, a charismatic entrepreneur whose penchant for coming up with revolutionary ideas has drawn comparisons to one of Silicon Valley's most revered visionaries, Apple co-founder Steve Jobs.  III. Besides paying a fine and stripping Musk of his chairman's title, Tesla also must appoint two more directors who have no ties to the company or its management. Musk will be allowed to remain on the board.
In the following question, sentences of a paragraph have been jumbled and labelled as A, B, C and D. You are required to rearrange the jumbled sentences of the paragraph and mark your response accordingly by selecting the correct option. A: An induction motor can, therefore, be made without electrical connections to the rotor. B: Three-phase squirrel-cage induction motors are widely used as industrial drives because they are self-starting, reliable and economical. C: An induction motor's rotor can be either wound type or squirrel-cage type. D: An induction motor or asynchronous motor is an AC electric motor in which the electric current in the rotor needed to produce torque is obtained by electromagnetic induction from the magnetic field of the stator winding.
General Motors Co (GM.N) and Nikola Corp will join forces to build electric pickup trucks and fuel cell commercial trucks. As part of a multi-part, multibillion-dollar deal, GM received how much per cent stake in Nikola?
Newton, Einstein, and Tesla working alone can do a piece of work in 20, 30, and 60 days respectively. All three of them start the work together, but after x days Newton leaves and then after y more days Einstein leaves and Tesla completes the remaining work. If Einstein had not left, Tesla and Einstein would have completed the remaining work in (y + 6) days after Newton had left. If both Newton and Einstein had stayed, the work would have been completed in (x + 6) days. What is the total number of days taken to complete the work?
Along with Nikola Tesla, which Swedish engineer is credited with inventing a three-phase electrical power system?
The question below consists of a set of labelled sentences. Out of the four options given, select the most logical order of the sentences to form a coherent paragraph. P: Nikola Tesla would have celebrated his 158th birthday today i.e. July 10. Q: His nemesis and former boss, Thomas Edison, R: was the iconic American inventor of the light bulb, the phonograph and the moving picture. S: The Serbian-American scientist was a brilliant and eccentric genius whose inventions enabled modern-day power and mass communication systems.
A certain amount of current flows through a ring shaped coil with fixed number of turns. How does the magnetic induction B varies inside the coil if an iron core is threaded into coil without dimensional change of coil?
একটি স্টেপ আপ ট্রান্সফরমারে, গৌণ কুণ্ডলীর পাকসংখ্যা মুখ্য কুন্ডলীর পাকসংখ্যার দ্বিগুণ। যদি মূখ্য কুন্ডলীকে কোন পরিবর্তী বিদ্যুৎ লাইনের সাথে সংযুক্ত করা হয়, তাহলে মুখ্য কুণ্ডলীর তুলনায় গৌণ কুণ্ডলীতে- (In a step up transformer, the number of turns in the secondary coil is twice to that of primary coil. If you apply an alternating current in the primary coil, then in the secondary coil compared to the primary coil-)
Examine the following statements relating to induction and identify those which are either true or false.
1. Induction today is renamed as empolyee orientation programme.
2. It is also known by the term 'on boarding'.
3. It is for the purpose of socialising the new employees.
4. Informal induction is better than formal induction.
Consider the following statement with reference to Popper's solution of the problem of induction, and mark the correct option.
1. There is no rationally justifiable method of induction.
2. There is no reliable method of induction.
3. There is a reliable method of induction.
Choose the correct answer: