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Armature core:
It houses the armature conductors or coils and causes them to rotate and as cuts the magnetic flux of field magnets. It also gives a path of very low reluctance to the flux by the armature from north to South Pole. It is cylindrical or drum shaped and is built of circular sheet steel discs or laminations.
Angle of banking: The angle made by the line joining the outer raised edge of the road to the inner edge with the horizontal line is called the angle of banking. Let AC rep
How can electricity make magnetic fields? In 1820, Oersted discovered that an electric current can produce a magnetic field. He happened to notice a compass move when he conn
Q What is photoelectric effect? Photoelectric release is the phenomena by which a good number of substances chiefly metals emit electrons under the influence of radiation such
derive an expression for time of flight of horizontal projectile
An e.m.f. of 25V is induced in a coil of 300 turns when the flux linking with it alters by 12mWb. Find the time, in milliseconds, in which the flux makes the change. An ignitio
what are the various types of tops ?
"The pressure of a needed mass of gas at constant volume differs directly as its Kelvin Temperature",
Proton was discovered by: (1)Chadwick (2)Thomson (3)Goldstein (4)Bohr Ans: (3)Goldstein
Brief about the directory representation in UNIX. A Unix directory is a file having a correspondence among filenames and inodes. A directory is a special file that the kernel m
The semiconductor material is refined through a process is known as zone refining. It is used for the production of high purity crystals; silicon for example has a melting temperat
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