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 = 1.5s: m/s b) the distance moved before coming to a stop: m2 . ..... 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 = 0.7i T? F1 = it K) N F2= it k) N F& = it k) N F. = K) N