4. Use Lenz's law to determine whether the induced current in the resistor R is from A to B or from B to A in the 4 configurations in Fig. 3. You should label the direction of Bsource , the sign of AD / At, the direction of Binduced and the direction of Iinduced in the coil and R for each of the 4 cases. A A A R R R R B B B B N S N N (1) (2) (3) (4) S S S N Figure 3 Four configurations