In the drcult shown in the figure below the capacitor has capacitance C = 30 μF and is initlally charged to 100 V with the polarity shown. The resistor Ro has resistance 10Ω. At time t=0 the switch Is closed. The small drcult is not connected in any way to the large one. The wire of the small circuit has a resistance of 1.0 fl/rn and contains 28 loops. The large drcult Is a rectangle 2.0 m 1,4.0 , whIle the small one has dImenslons a = 10.0 cm and la 20.0 cm. The distance c is 5.0 cm. (The figure Is not drawn to scale.) Both circuits are held statIonary. Assume that only the wire nearest the small drcult produces an appreclable magnet, field through It.
(a) Find the current in the large circuit 100 μs after S closed.
(b) Find the current in the small circuit 100 μs after S is closed.