Answered: If the diameter of a 25 cm long…

If the diameter of a 25 cm long solenoid is 12 cm and the number of turns is 120, what will be the magnetic field strength when a current of 3 A passes through it?

An Introduction to Physical Science

14th Edition

ISBN:9781305079137

Author:James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar Torres

Publisher:James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar Torres

Chapter8: Electricity And Magnetism

Section: Chapter Questions

Problem 9MC

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Concept explainers

Ferromagnetism

Ferromagnetism is a mechanism by which some materials show magnetic properties. Iron and magnetite, an oxide of iron, are two naturally occurring materials that show the property of ferromagnetism. The word ferromagnetism is derived from the Latin name of iron, "Ferrum" as it was the first observed material to show such property. The property of ferromagnetism is shown by only a few substances such as iron, nickel, cobalt, and their alloys. Some transition metals and alloys of rare-earth metals also show ferromagnetism.

Question

39 -
If the diameter of a 25 cm long solenoid is 12 cm and the number of turns is 120, what will be the magnetic field strength when a current of 3 A passes through it?
a) 3.04 mT
B) 1.27 mT
O C) 1.81 mT
D) 4.63 mT
Ото) 2, 16 mT

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