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Solve the following problem given below:

Problem: An 85 mH solenoid inductor is wound on a form 0.80 m in length and 0.10 m in diameter. A coil is tightly wound around the solenoid at its center. The coil resistance is 8.1 ohms. The mutual inductance of the coil and solenoid is 27 ÂµH. At a given instant, the current in the solenoid is 540 mA, and is decreasing at the rate of 2.5 A/s.

Part A: At the given instant, the induced emf in the solenoid is closest to:

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