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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.
At a point in a beam, the bending stress is 50 MPa shear stress and tensile is 20 MPa. Calculate :- (i) The principal stress and maximum shear stress. (ii) The tensile stress
In a 4-Bar process the following data is given :- Length of crank (AB) = 300 mm, Length of link AD = 600 mm, Length of links BC = CD = 360 mm, Angle BAD ie ∠BAD = 60o ,
Modulus of Rupture: What is the Modulus of Rupture? Sol.: The maximum fictitious shear stress which can be calculated by torsion formula by using the experimentally fou
used of Wilson ha rtnell governor
Find out the angle of force: Q: A uniform wheel having 60 cm diameter weighing 1000 N rests against rectangular obstacle 15 cm high. Find least force required which when ac
Argon - Hydrogen Mixtures Argon - hydrogen mixtures are employed in special cases, such as mechanised welding of light gauge stainless steel tubing, in which the hydrogen do
constituents of paint and their functions
Necessity of Battery To obtain power for ignition system. To obtain power for lighting. To obtain power for horn. To obtain power for self-starting.
The auto component sector has also posted significant growth of 20 percent in 2003-04, and achieved a sales turnover of Rs. 30,640 crore (US$ 6.7 billion). Further, there is a pote
calculate stress intensity factor
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