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It is the energy possessed by a body because of the interactive forces inside the object. This may be defined as the work done in assembling all the particles of a body in a exact shape and size or it is the work done in creating a body. We can say that if the forces inside the body are attractive, work done in assembling is done by the body itself and self energy of the body will be negative and if the forces inside the body are repulsive then some external work will be completed in assembling the body and its self energy will be positive. As gravitational self energy of an object is concerned obviously it is always negative because of attractive forces.
A wheel is mounted on a stationary axle starts at rest and is given the following angular acceleration a =(9-12t) (SI units)where t is the time after the wheel begins to rotate.Fin
Define the characteristics of Heterojunction laser. Heterojunction laser: The threshold current density for homojunction lasers is extremely large because of poor optical an
Working: When plate potential (V p ) is positive, plate current ( I p ) flows in the circuit (because some emitted electrons reach to plate). If + V p enhances I p also increas
The rate of flow of energy or particles across a given surface.
A 400V, 3-phase star linked alternator supplies a delta-connected load, each phase of which has a resistance of 30 and inductive reactance 40. Calculate (a) the current sup
How much work has to be completed in assembling three charged particles q1= 2 micro coulomb, q2= 3 micro coulomb and q3= 4 micro coulomb at the vertices of a equilateral triangle o
1. Sodium dodecyl sulfate is a detergent with a charged hydrophilic sulfate head group and a 12 carbon hydrocarbon tail. In solid form it exists as a monomeric molecule but upon
how many pumps does the heart pumps
(a) Show that the total power in a 3-phase, 3-wire system using the two-wattmeter method of measurement is given by the sum of the wattmeter readings. Draw a connection diagram.
a) A charge Q is placed at the centre of a cube. determine the flux of the electric field through the six surfaces of the cube. b) Determine the magnitude of the electric field
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