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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.
When a P-type semiconductor is suitably joined to an N-type semiconductor, then resulting arrangement is called P-N junction or P-N junction diode Depletion region : On account
You''ve recently wired up an experiment in the lab. Part of the experiment involves having two long wires extended 2 meters below the ground. One day, the experiment stops working.
formulas about force in detail
Disadvantages of D.C. Transmission of power 1. Electric power cannot be produced at high d.c. voltages because of commutation problem. 2. The d.c. voltage cannot be stepped
Joule's laws (J.P. Joule) Joule's first law The heat Q generated while a current I pass through a resistance R for a particular time t is given by following Q = I2 R
Question 1. Discuss the constituents of developer 2. List the different types of X-ray cassettes .Explain the construction of the X-ray cassette 3. What is contrast? Expl
Rules to verify how many significant numbers has in a calculated quantity: 1. All nonzero digits are significant. As like 457 cm has three significant values; 0.25 g has two si
Deduce the expression for expected fringe shift in Michelson Morley experiment. Discuss the result of experiment.
You watch a distant carpenter driving his nails into the side of a house at a regular rate of 1 stroke per second. You hear the sound of the blows exactly synchronized with the bl
How is lasers use in Medical Treatment? Lasers in Medical Treatment: Lasers used within cosmetic surgery as removing tattoos, stretch marks, scars, sunspots, birthmarks, wri
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