A solenoid has 85 turns, a diameter of 15 cm, and a length o…

A solenoid has 85 turns, a diameter of 15 cm, and a length of 80 cm. Initially, there is a 5 A current through the solenoid, which switches to a 5 A current in the opposite direction over a time of 0.5 ms. What is the magnitude of the average self-induced emf in the solenoid?  

A solenoid has 85 turns, a diameter of 15 cm, and a length o…

A solenoid has 85 turns, a diameter of 15 cm, and a length of 80 cm. Initially, there is a 5 A current through the solenoid, which switches to a 5 A current in the opposite direction over a time of 0.5 ms. What is the magnitude of the average self-induced emf in the solenoid?