The linear machine shown in Figure has a magnetic flux density of 0.8 T Q 3) directed into the page, a resistance of 0.3 N, a bar length l = 1.0 m, and a battery voltage of 120 V . a) What is the initial force on the bar at starting? What is the initial current flow? b) What is the no-load steady-state speed of the bar? c) If the bar is loadcd with a force of 25 N opposite to the direction of motion, what is the new steady-state speed? What is the efficiency of the machine under these circumstances? I=0 0.3 N B = 0.8 T Vg = 120V

The linear machine shown in Figure has a magnetic flux density of 0.8 T Q 3) directed into the page, a resistance of 0.3 N, a bar length l = 1.0 m, and a battery voltage of 120 V . a) What is the initial force on the bar at starting? What is the initial current flow? b) What is the no-load steady-state speed of the bar? c) If the bar is loadcd with a force of 25 N opposite to the direction of motion, what is the new steady-state speed? What is the efficiency of the machine under these circumstances? I=0 0.3 N B = 0.8 T Vg = 120V