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(a) Calculate the inductance of a solenoid containing 300 turns if the length of the solenoid is 25.0 cm and its cross sectional area is 4.00×10-4 m2. (b) Calculate the self- induced emf in the solenoid described in part (a) if the current in the solenoid decreases at the rate of 50.0 A/s. detailed answer

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