(c) Because of the internal resistance of the ring, the current through R at the time given in part (b) is only 3.00mA. Determine the internal resistance of the ring.
(d) Determine the emf in the ring at a time t = 1.21 X 10-2 s. What is the polarity of the emf?
(e) Determine the time at which the current through R reverses its direction.