1. A student performs this lab using rods of length L = 18 cm. When the current is I = 7.1 A, thedistance between the balanced rods is r = 4 mm.a) Using the theoretical value of μo, calculate the magnetic field from one rod at the location of theother.b) Calculate the magnitude of the magnetic force between the rods.c) Calculate the required mass required to balance this force. CURRENT BALANCESUMMARYYou will measure the force between two current carrying wires and use this to calculate a valuefor the vacuum permeability constant μ..THEORYA wire of length L carrying a current I produces a magnetic field that at a distance r < L from thewire has magnitude(1)(2)If a second wire of length L carrying the same current I is placed parallel to the first wire it willexperience a magnetic force of magnitudeF = ILB =μ1²L2πr(3)where B is the magnetic field from the first wire, and r is the separation between the currents.If this force is exactly opposed by the weight of a mass m, then F = mg andHol²Lmg =2πrwhich can be rewritten in terms of μo asHo =HolB =2πηwhere po is the vacuum permeability constant and is equal toHo= 4 x107 T.m/A(4)(5)In this lab the replusive force between two current-carrying wires will be calculated via the weightsof known masses, and the results will be used to calculate the value of μo.2πrmg12LThis lab is extremely similar to Lab 1. In that lab you balanced an electric force to calculate &, inthis lab you will balance a magnetic force to calculate po. The experimental apparatus and labprocedures between the two labs are essentially the same.

1. A student performs this lab using rods of length L = 18 cm. When the current is I = 7.1 A, the distance between the balanced rods is r = 4 mm. a) Using the theoretical value of μo, calculate the magnetic field from one rod at the location of the other. b) Calculate the magnitude of the magnetic force between the rods. c) Calculate the required mass required to balance this force.

1. A student performs this lab using rods of length L = 18 cm. When the current is I = 7.1 A, the distance between the balanced rods is r = 4 mm. a) Using the theoretical value of μo, calculate the magnetic field from one rod at the location of the other. b) Calculate the magnitude of the magnetic force between the rods. c) Calculate the required mass required to balance this force.

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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