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9.8 Exercise 8

Avg difficulty 2.5

A Pb wire wound in a tight solenoid of diameter of 4.0 mm is cooled to a temperature of 5.0 K. The wire is connected in series with a 50-Ω50 - \Omega resistor and a variable source of emf. As the emf is increased, what value does it have when the superconductivity of the wire is destroyed?

OpenStax University Physics Volume 3, 9.8 Superconductivity, exercise 8

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Adapted from University Physics Volume 3 © 2016 Rice University. Licensed under CC BY 4.0. Source: University Physics Volume 3. Imported at revision db44eb9.