There is a solenoid with an inductance of 0.285 mH, a length of 36 cm, and a cross-sectional area of 6×10−4 m2. Suppose at a specific time the emf is 12.5 mV, find the rate of change (Ampere per second) of the current at that time. Find the number of turns of the solenoid. Round your answer in one decimal place.

There is a solenoid with an inductance of 0.285 mH, a length of 36 cm, and a cross-sectional area of 6×10−4 m2. Suppose at a specific time the emf is 12.5 mV, find the rate of change (Ampere per second) of the current at that time. Find the number of turns of the solenoid. Round your answer in one decimal place.