Question 1:

B Vo A constant current of 1.4 A flows through a metal rod of length 13 cm and mass 190 g that slides on frictionless rails, as shown in the figure above. A uniform magnetic field of 0.64 T is directed into the page. If the initial speed of the rod is 5 m/s, find: a) the speed of the rod at t = 1.5 s: m/s b) the distance moved before coming to a stop: m2 - X Z 4 A wire carrying a 9 A current is bent to pass through various corners of a square of side 25 cm as shown in the figure above. What is the force on each segment for B = 0.7iT? + K) N k) N F 2 i+ F & = 1+ k) N F 4 k) NA rod of length I = 25 cm and mass m = 45 g lies on a plane inclined at H : 40 to the horizontal, as shown in the figure above. A current enters and leaveS the rod Via light flexible wi res which we ignore. For what current magnitude will the rod be in equilibrium in a magnetic field = (MET? Ignore friction. 1=l lA