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ROTOR:
(i) squirrel -cage rotor
(ii) phase-wound or wound-rotor
90% of Induction Motor are squirrel cage type due to this type of rotor has a easiest and the most rugged construction and is almost indestructible. Rotor having of a cylindrical laminated core with parallel slots for carrying rotor conductors. Rotor bars are enduringly short circuited on themselves;
An iron ring of mean diameter 10 cm is uniformly wound with 2000 turns of wire. When a current of 0.25 A is passed by the coil a flux density of 0.4 T is set up in the iron. F
Chain Reactor: Splitting of nuclei also causes the emission of neutrons. If these neutron cause further fission in the other nuclei and this process continues, then it is known
Two speakers are driven by the same oscillator whose frequency is f. They are located a distance d from each other on a vertical pole. A man walks straight toward the lower speaker
Suppose you blow the top of a bottle and hear a resonance sound (standing wave). The length of the bottle is about 25cm. If the speed of sound in air is about 340 cm/sec., what i
Poisson equation (S.D. Poisson) It is the differential form of Gauss' law, such as, div E = rho,
Tesla; T (after N. Tesla, 1870-1943): The derived SI unit of magnetic flux density, described the magnetic flux density of magnetic flux of 1 Wb by an area of 1 m 2 ; thus it
pedaling cycle is less friction or more
Color vision and chromatic aberration: One of the remarkable ability of the eye is its ability to see color. There are three types of cones that respond to light from three
what is screw jack
Alpha particles are nuclei of: a) Hydrogen b) Helium c) Oxygen d) Nitrogen Ans: Alpha particles are nuclei of helium.
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