An inductor in the form of an air-core solenoid contains 255 turns, is of length 15.7 cm, and has a cross-sectional area of 1.2 cm². The permeability of free space is 1.25664 x 10-6 N/A². What is the magnitude of the uniform rate of change in current through the inductor that induces an emf of 275 µV? Answer in units of A/s. of free space space is
