An az oriented solenoidal coil with 1000 turns per meter has a diameter of 2 cm and is 20 cm long. It is filled with an iron bar with a lr = 10 lo of the same size. The iron has a density of 7.87 g/cm3. %3D Choose the minimum current that is required to keep the iron bar inside the solenoid in the earth's gravitational field of -9.8 m/sec2 a, (in other words, so that it will not fall)?

An az oriented solenoidal coil with 1000 turns per meter has a diameter of 2 cm and is 20 cm long. It is filled with an iron bar with a lr = 10 lo of the same size. The iron has a density of 7.87 g/cm3. %3D Choose the minimum current that is required to keep the iron bar inside the solenoid in the earth's gravitational field of -9.8 m/sec2 a, (in other words, so that it will not fall)?

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter12: Sources Of Magnetic Fields

Section: Chapter Questions

Problem 64P: A solenoid with an iron core is 25 cm long and is wrapped with 100 turns of wire. When the current...

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