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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
Alternating Current: (AC) Such a current can be obtained if a resistor is linked in series with a source of alternating voltage. This current alters its direction so many times
Which of two, namely potentiometer and voltmeter is preferable to calculate the emf of a batter? Why? When is the series combination of cells advantageous and why?
What is meant by the term 'modulation'? Define with the help of a block diagram, how the process of modulation is carried out in radio broadcasts.
The earth's rotation about its axis changes measurably over time; You don't have to worry about the details; all you need to know is that our days are growing longer by about 2.3 m
Give the graphical representation of the end on view of plane polarized light and unpolarized light.
Surface crystallography and epitaxy. Fe thin films are grown on a single-crystal Al(100) substrate surface. The films grow with no dislocations (if they are thin enough) with sug
Wien displacement law: For blackbody, the product of the wavelength equivalent to the maximum radiancy and the thermodynamic temperature is a constant, the Wien displacement l
Define the cleaning effects of innovative proprietary ultrasonic technology. Additionally, the pollution particles are dispersed in the cleaning liquid. By this, a new adhesion
A concentric tube heat exchanger is comprised of a thin wall inner tube of 25.4 mm diameter and an outer tube of 47 mm diameter. The heat exchanger is used for cooling lubricating
Using a wheel and axle Use the pencil sharpener that you used in experiment A 8. Pull on the end of the string that held the books and observe how rapidly the crank turns.
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