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Explain Rolling
Rolling: A pair of cylindrical rollers made of iron or steel rotate in opposite direction with a gap between them which is smaller than the cross section of the piece which is to be rolled. The work piece is inserting into the gap and as it passes among the rolls, it is squeezed, its cross section being progressively reduced. As the working volume remains constant, the result of passing by the rolls would be lengthening of the work piece and a corresponding decrease and shaping of the cross section. ling and Forging
when a soft iron piece is buried under the surface of earth in the north south direction why the iron piece show properties of a magnet
Why because it is not a source as Li-ion battery. If we want to measure the voltage(build in voltage) with in the diode we have to use the external source. We can''t directly measu
Inelastic Collision Collisions among objects are governed through laws of momentum and energy. While a collision occurs within an isolated system, the total momentum of the sys
Q. Illustrate what is a thermal transformation? Answer:- Chemical or else physical changes are not requiring a change in the temperature of the substance as in the formati
Describe Gauss' law and its importance. Use it to search out the electric field due to a linear and infinite sheet charge distribution and also describe why Gauss' law cant be used
current gam relashionship betweem alpha and betta
Define, with the help of diagram, the principle and working of an a.c. Generator. Write the expression for the e.m.f. generated in the coil in terms of its speed of rotation
Define the Nuclear Power As an energy source, nuclear power is an alternative to fossil fuels. Controlled nuclear chain reactions are used to generate electricity in a safe ma
I need help solving an equation or two to find the elastic potential energy of a spring when compressed. Spring starts at .75 m, and is compressed to .25 m by a force of 12 newtons
prove that equatorial line of dipole acts as equipotential surface
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