The following information is given about the simple rotating loop shown in Figure 8-6:
B = 0.4 T
l = 0.5 m
r = 0.25 m
VB = 48 V
R = 0.4 W
w = 500 rad/s
(a) Is this machine operating as a motor or a generator? Explain.
(b) What is the current i flowing into or out of the machine? What is the power flowing into or out of the machine?
(c) If the speed of the rotor were changed to 550 rad/s, what would happen to the current flow into or out of the machine?
(d) If the speed of the rotor were changed to 450 rad/s, what would happen to the current flow into or out of the machine?
(a)
(b)