A straight wire of length 70 cm carries a current of 30 A and makes an angle of 60 with a uniform magnetic field. If the force on the wire is 1.0 N what is the magnitude of B? Select one: a. 33mT b. 41mT C. 82.5mT d. 55mT

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Q: A straight wire of length 70 cm carries a current of 40 A and makes an angle of 60° with a uniform…

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Q: A 12.9 cm long solenoid contains 817 turns and carries a current of 4.69 A. What is the strength B…

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Q: In the figure, two circular arcs have radii a = 13.1 cm and b = 10.6 cm, subtend angle = 70.0°,…

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Q: straight wire with length 2326cm  carries a current 23A which is directed to the right and is…

A: straight wire with length 2326cm  carries a current 23A which is directed to the right and is…

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Q: ·b – 12 a b

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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.