The solenoid contains n = 600 turns. Core cross-section (made of non-magnetic material) S = 8 cm2. A current flows through the winding, creating a field with induction B = 5 mT. Determine the average value of e. d.s. self-induction that occurs at the solenoid terminals if the current decreases to almost zero within a time Δt = 0.6 ms.
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