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II. The planet earth has a magnetic field, B = (415 mT)j - (114 mT)k. a) A wire of mass 22 g and 25 cm long with a current of 33 mA in the i direction is placed near the surface of the earth. What is the magnitude and direction of the magnetic force on the wire due to the Earth's magnetic field? b) Consider the same wire, but this time ignore the Earth's magnetic field. What magnitude and direction of magnetic field could this wire be placed in in order to levitate it, i.e., overcome the force of gravity acting upon it? Assume gravity acts in the -k direction.

II. The planet earth has a magnetic field, B = (415 mT)j - (114 mT)k. a) A wire of mass 22 g and 25 cm long with a current of 33 mA in the i direction is placed near the surface of the earth. What is the magnitude and direction of the magnetic force on the wire due to the Earth's magnetic field? b) Consider the same wire, but this time ignore the Earth's magnetic field. What magnitude and direction of magnetic field could this wire be placed in in order to levitate it, i.e., overcome the force of gravity acting upon it? Assume gravity acts in the -k direction.

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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II. The planet earth has a magnetic field, B = (415 mT)j - (114 mT)k. a) A wire of mass 22 g and 25 cm long with a current of 33 mA in the i direction is placed near the surface of the earth. What is the magnitude and direction of the magnetic force on the wire due to the Earth's magnetic field? b) Consider the same wire, but this time ignore the Earth's magnetic field. What magnitude and direction of magnetic field could this wire be placed in in order to levitate it, i.e., overcome the force of gravity acting upon it? Assume gravity acts in the -k direction.
Transcribed Image Text:II. The planet earth has a magnetic field, B = (415 mT)j - (114 mT)k. a) A wire of mass 22 g and 25 cm long with a current of 33 mA in the i direction is placed near the surface of the earth. What is the magnitude and direction of the magnetic force on the wire due to the Earth's magnetic field? b) Consider the same wire, but this time ignore the Earth's magnetic field. What magnitude and direction of magnetic field could this wire be placed in in order to levitate it, i.e., overcome the force of gravity acting upon it? Assume gravity acts in the -k direction.
Answeas: O F=0.00342k+0•000940j N %3D O Maguit ode = 0.003547 N 13D Dioection= Tani' (0-00940 O 00342 3D15.37° foom 2-exis 9, =26.13 T こ (along positive yra's)
Transcribed Image Text:Answeas: O F=0.00342k+0•000940j N %3D O Maguit ode = 0.003547 N 13D Dioection= Tani' (0-00940 O 00342 3D15.37° foom 2-exis 9, =26.13 T こ (along positive yra's)
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