Let's say we imagine a motor. It seems that motor is a normal and relatively popular and very common. Let us say that this motor in particular has a shaft. This shaft that the motor is composed of is then turning at an anguler speed at the time when t is equal to 0. a = A + Bt after the times t= 0, we have In this case, A & B contain apprOpriate units. (rad/s) a (rad/s^2) :) WE NEED TO GET: a. We need to figure out what would be the angulor speed of this shaft that we are talking about at any tat all. b. We need to figure out what would be the alteration in angulor position of this shaft we are talking about that is relative to its t value for any t at all. c. let us imagine if the shaft that we are talking about has a radius (r of course), we need to figure out what will be the distances will a point on the edge of the shaft have traveler from t=0 to t..

× 4:03 K s.eng.ruh.ac.lk □ Û 8. Figure 4 shows the core of a simple dc motor. The magnetization curve for the metal in this core is given by Figure 5 and Figure 6. Assume that the cross-sectional area of each air gap is 18 cm² and that the width of each air gap is 0.05 cm. The effective diameter of the rotor core is 4 cm. L It is desired to build a machine with as great a flux density as possible while avoiding excessive saturation in the core. What would be a reasonable maximum flux density for this core? ii. What would be the total flux in the core at the flux density of part (i)? iii. The maximum possible field current for this machine is I A. Select a reasonable number of turns of wire to provide the desired flux density while not exceeding the maximum available current. Flux Density, B (T) 2.8 སྤྲ ཤཱ ཀ ཀཱ བྷ ཀ ཡཱཾ བ ་ 1.2 1.0 0.4 0.2 4-48cm Figure 4 0 10 20 30 40 50 100 → Depth 4 cm -0.05 cm 200 300 500 1000 2000 Magnetizing Intensity, H (A.turns/m) Figure 5 Magnetization curve…