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Explain Slip-ring
Slip-ring (or phase- wound) rotor having of a slotted laminated core of sheet steel. A three- phase winding is placed in the rotor slots. The rotor winding is usually linked in star, though it might be connected in delta also. The free-ends of the rotor windings are brought out, and linked to three slip-rings mounted on the rotor shaft. In this case, depending upon the necessity any external resistance can be added in the rotor circuit.
Brackett series (Brackett) This is the series that describes the emission spectrum of hydrogen while the electron is jumping to the fourth orbital. All these lines are in the i
how do you produce a pure spectrum
Verify the principle of potentiometer. Illustrate a circuit diagram used to compare the e.m.f. of two primary cells. Write the formula used. How can the sensitivity of a potentiome
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describe the principle, construction and working of Michelson Interferometer.
Energy in transmitted in space in all direction. Example : Light and sound waves propagating in space.
what do you mean by nuclear fusion and fusion? explain briefly giving certain examples.
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M is the magnetic moment of bar magnet and T is time period of oscillation. If we make M as M/4 then what will be the time period
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