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A solenoid with 445 turns has a length of 5.00 cm and a cross-sectional area of...

A solenoid with 445 turns has a length of 5.00 cm and a cross-sectional area of 3.20 ✕ 10−9 m2. Find the solenoid's inductance and the average emf around the solenoid if the current changes from +4.00 A to −4.00 A in 7.83 ✕ 10−3 s.

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