solve the following two questions
66.In Figure P31.66,determine the magnitude of current I.
Figure P31.66
600 WM
12
11
24V
300
600
6V
67.In Figure P31.67,calculate the magnitudes of currents IiI and I3.
Figure P31.67 300
200
12V
9V
1.5V
1000
600
1.5V