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Shell type transformers:
In this type of transformer the iron core surrounds the copper windings (fig. given below). The core is in the form of numeral 8. The entire flux passes by the central part of the iron core, but outside this central core it separates into two parts half going in every direction. Sandwich type winding is used in which the sections of the primary winding are sandwiched in among the sections of the secondary winding. In this manner the leakage flux is decreased to very small value. To minimize the amount of high voltage insulation low voltage coils are placed adjacent to the iron core
circuits
help by post offoce box explan rasistance of a wire
Q. What are secondary cells? Give an example? i) They are rechargeable. ii) The chemical reactions which take place in secondary cells are reversible. iii) The active mat
Although it needs not concern us further, we also consider that the flow is irrotational. To check for this property, let a tiny grain of dust goes with the fluid. Although this te
Shell type transformers . In this type of transformer the iron core surrounds the copper windings. The core is in the shape of numeral 8. The entire flux passes by the central pa
Get a mathematical expression for the torque on a loop placed in a uniform magnetic filed. Define the working and construction of moving coil galvanometer?
IMPULSE: When a force acts on a body for a very short time, the product of the force and the time for which the force acts, is called the impulse or impulse of force".
what is virtual displacement?and how is it different from actual displacement?
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Two faultlessly conducting spheres are in an evacuated region of space. One is at a potential of -1200 volts as well as the other is at a potential of 1500 volts. A free electron i
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