Find the current given length and magnetic field strength

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SUMMARY

The discussion revolves around calculating the current in a long wire given a magnetic field strength of 55 µT at a distance of 1 cm from the wire. The relevant equation is F = I * L * B sin θ, where F represents force, I is the current, L is the length of the wire, and B is the magnetic field strength. Participants emphasize the importance of understanding the quantities involved rather than just solving for the current. The absence of an angle or force in the problem statement is noted as a potential confusion point.

PREREQUISITES
  • Understanding of electromagnetic theory
  • Familiarity with the equation F = I * L * B sin θ
  • Knowledge of magnetic field strength units (Tesla, microTesla)
  • Basic algebra for rearranging equations
NEXT STEPS
  • Research the relationship between current and magnetic fields in long straight conductors
  • Learn about the Biot-Savart Law for calculating magnetic fields
  • Explore the concept of magnetic field strength and its measurement
  • Study the implications of angle θ in electromagnetic equations
USEFUL FOR

Students studying electromagnetism, physics educators, and anyone seeking to understand the relationship between current and magnetic fields in conductive materials.

warnexus
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Homework Statement



What is the current in a long wire if the magnetic field strength 1.0 cm from the wire's axis is 55 mu T.

i know magnetic field strength which is 1 cm
i know the length which is 55 milli-tesla.
I need to find Current in Amperes which is I.

The chapter gives me the equation down below to use but the question does not give me an angle or a force.

Homework Equations



Use F = I * L * B sin theta

The Attempt at a Solution

 
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The equation you are looking for is here. Try it and you should get the answer.
 
warnexus said:

Homework Statement



..i know magnetic field strength which is 1 cm
i know the length which is 55 milli-tesla.
I need to find Current in Amperes which is I….

Check your inputs. It's not about finding the correct number, it's more about understanding the quantities and what they represent.
 

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