What is the average induced emf in the secondary coil

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A very long, straight solenoid with a cross-sectional area of 6.00cm squared is wound with 40 turns of wire per centimeter, and the windings carry a current of 0.250A . A secondary winding of 2 turns encircles the solenoid at its center. When the primary circuit is opened, the magnetic field of the solenoid becomes zero in 5.00×10?2s . What is the average induced emf in the secondary coil?

Reference no: EM13275057

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