A solenoid ring with N = 3 loops is immersed in a uniform time-varying magnetic field (shown in the figure) whose strength is given by B = (1/4) sin(t/2) T, where t is in seconds. If the radius of the loop is r = 4m, what is the maximum magnitude of the EMF in the loop? At what time is the magnitude of the EMF at half its max value?

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