The figure shows a circular circuit of radius R = 0.2 m which is crossed transversally by a magnetic field whose intensity varies over time as follows: B = B_{0}e^(-t/r), where B_0 = 0.4 T and t = 2 s, If the circuit has a natural resistance of R = 200 ohm, find the induced emf and the induced current in the circuit at t = 4 s

The figure shows a circular circuit of radius R = 0.2 m which is crossed transversally by a magnetic field whose intensity varies over time as follows: B = B_{0}e^(-t/r), where B_0 = 0.4 T and t = 2 s, If the circuit has a natural resistance of R = 200 ohm, find the induced emf and the induced current in the circuit at t = 4 s