Calculating Field Direction and Magnitude for Levitating Copper Wire

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Homework Help Overview

The discussion revolves around calculating the direction and magnitude of the magnetic field associated with a horizontal copper wire carrying a current. The wire is specified to be 1.0m long, with a diameter of 0.10cm and a current of 50 A, and it is noted to be levitating.

Discussion Character

  • Exploratory, Conceptual clarification, Mathematical reasoning

Approaches and Questions Raised

  • Participants discuss the use of the formula F=IL×B=mg to relate the magnetic force to the gravitational force acting on the wire. There are inquiries about how to apply the formula, particularly regarding the values to use for mass and gravitational acceleration.

Discussion Status

Some participants have provided guidance on the components of the formula, while others are seeking clarification on the underlying principles and the setup of the equation. Multiple interpretations of the problem are being explored, particularly regarding the application of the formula and the significance of understanding its derivation.

Contextual Notes

There is a repeated emphasis on understanding the principles behind the equation rather than merely substituting numbers, indicating a focus on conceptual understanding. The discussion reflects a lack of consensus on how to proceed with the calculations.

g.gnunu
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how do i find the field direction and magnitude of a horizontal copper wire with a current moving East. length is 1.0m, diameter is .10cm, current is 50 A. the wire is being levitated.
 
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Use F=ILXB=mg.
 
field direction and magntiude

could you polease expand on the formula. what numbers do i plug in for mg?
 
m - mass of the wire
g - 9.81N/Kg. The force which a 1Kg mass exerts due to gravity.
 
g.gnunu said:
could you polease expand on the formula. what numbers do i plug in for mg?
The important thing isn't knowing which numbers to plug in where, it's understanding the principles behind the equation and where the equation comes from. Do you understand where the equation comes from?
 
Last edited:
how do i set up the formula to get the answer?
 

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