Question

A coil 3.65 cm radius, containing 500 turns, is placed in a uniform magnetic field that varies with time according to B = (1.20 times 10^-2 T/s)t + (2.70 times 10^-5 T/s^4)t^4. The coil is connected to a 610- ohm resistor, and its plane is perpendicular to the magnetic field. You can ignore the resistance of the coil. Find the magnitude of the induced emf in the coil as a function of time. Epsilon = 7.99 times 10^-3 V + (7.19 times 10^-5 V/s^3)t^3 Epsilon = 2.51 times 10^-2 V+(5.65 times 10^-5 V/s^3)t^3 Epsilon = 2.51 times 10^-2 V + (2.26 times 10^-4 V/s^3)t^3 What is the current in the resistor at time t_0 = 5.25 s ?

Answer 1