Expanded from Homework: A wire is bent into a semicircle of radius r forms a closed circuit with N 2 22 loops having a resistance of 2.87 9 and is supplied with AV : l 1.89 Vdc. The wire lies in the xy plane, and a uniform magnetic eld is directed along the positive yaxis as in Figure. Fl ssume a ma_net1 I field B = #0 2Ids , and system has radius : 24 cm, #0 : 4x10A7 T'm'A'l. Show the integration step by ' I A' Use B : 0.63 T, which means you will be given B. step and then solve numerically the following. Find the magnitude of a) current, b) internal resistance of the power supply 0) the magnetic eld, (:1) the power in the system c) and direction of the magnetic force acting on the straight portion of the wire 1') and on the curved portion between 6000 and 120. (100 pts)