Ask your teacher the magnetic flux through a metal ring varies with time t according to φb = at3 − bt2, where φb is in webers, a = 6.00 wb s−3, b = 18.0 wb s−2, and t is in seconds. the resistance of the ring is 2.50 ω. for the interval from t = 0 to t = 2.00 s, determine the maximum current induced in the ring.