A solenoid with 485 turns has a length of 5.00 cm and a cross-sectional area of 2.90 ✕ 10−9 m2. Find the solenoid's inductance and the average emf around the solenoid if the current changes from +2.50 A to −2.50 A in 6.83 ✕ 10−3 s.
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