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NepalTelecome General Modal Questions

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Subjective type Paper 1                                  4 Marks each Set A1 Qno 1. Define and explain Center of gravity and Centroid.X  2 Ans   The centroid is purely a geometrical thing. It is the centre of gravity for objects of uniform density. But an object's density can be non-uniform, which will move the centre of gravity away from the centre.Center of mass of any geometrical figure is a point where whole mass of the body concentrates. Centroid is the geometrical center of a body or an objectBut center of mass lies at mean positions of all particlesLike for center of mass (m1×l1+m2×l2)/(m1+m2).But centroid is like (l1+l2)/2 Qno 2. Define truth table for nand and nor gate with input 0 and 1. NAND gate This is a NOT-AND gate which is equal to an AND gate followed by a NOT gate.  The outputs...