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Commutator
The function of a commutator is to change alternating current induced in the armature into unidirectional current. The commutator is of cylindrical shape and is made up of wedge-shaped hard drawn copper. These segments are insulated from each other with thin layers of mica sheet. The number of segments is equal to the number of armature coils. Every commutator segment is linked to the armature conductor by means of a copper lug or riser.
A vessel is in the shape of a truncated cone having diameter of 1 meter at the top and 2 meter at the bottom and height 2 meter. If it is fully filled with water determine the upwa
1.0 INTRODUCTION Welding is a material joining process used in making welds and a weld is a localised coalescence of metals or non metals produced either by heating the mate
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Find out the centroid of the shaded area: Find out the centroid of the shaded area illustrated in Figure (a). Solution The shaded area A may be considered as the
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In case of welded vessels why is stress relieving in the form of post-weld treatment necessary? When a metal is welded together the point at which two surfaces are joined are s
A copper-silver bimetallic wire, 1 cm in diameter, is prepared by co-extrusion with copper as the core and silver as the outer layer. The desired properties along the axis parallel
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