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Uniform Alternate Electric Field
Suppose a particle moves under a uniform (i.e. independent of space co-ordinates) but alternating electric field E given by,
E = E0 sin ω t = ( E0 i) sin ω t (i)where, E0 is amplitude and ω is angular frequency of oscillation. We define the direction of electric field as X-axis.The equation of motion of the particle of mass m and charge q in this field is, Integrating, we find where constant of integration c1 is set by initial condition: at t = 0, when E = 0, let v = v0. Hence, we get Integrating once again, we find where constant of integration r0 is the initial position of the particle; at t = 0, r = r0.We can always put r0 = 0; let us also take v0 = 0. Further, if E0 = E0 i, we have The particle moves along X-axis with time dependent speed vx (t). The average speed of the particle during a cycle is, vx is called the drift velocity of the particle. The displacement of the particle during one complete cycle, i.e. in time T, The graph between x and t is obtained by superposing the sine curve and the straight line,x = x1 + x2 If v0 ≠ 0, the particle may continue to move along y and z directions with constant initial velocities voy and voz. Simultaneously, it is drifted towards X-axis by a fixed distance per cycle, viz.
Thermit Welding This process utilises the intense heat developed during the reaction between iron oxide and aluminium. When a mixture of three parts of iron oxide and one part
Q. What is the basic working of Cooling Tower? Cooling towers are generally located downwind from process units to adequately disperse vapors (from exchanger leaks) and minimiz
Masonry Arch Culverts: Brick or stone masonry arches were very popular forms for culverts till recently. The disadvantage with this form is the unavoidable humps in the longi
Two shafts A and B are co-axial. A gear C (50 teeth) is rigidly mounted on shaft A. A compound gear D-E gears with C and an internal gear G. D has 20 teeth and gears with C and E h
matle cutting
the velocity of a particle moving along x axis is defined by v=kx^3-4x^2+6x where v is in m/s,x in m and k is a constant .if k=2 compute the acceleration when x=2m
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