Maximum magnetic force on a wire in a magnetic field

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Homework Help Overview

The discussion revolves around a problem concerning the maximum magnetic force on a wire placed in a magnetic field, specifically focusing on the relationship between the wire's length, the current flowing through it, and the magnetic field strength.

Discussion Character

  • Exploratory, Conceptual clarification, Assumption checking

Approaches and Questions Raised

  • Participants discuss the relevant equation for magnetic force on a wire, with some expressing uncertainty about its derivation and application. Questions arise regarding the original poster's familiarity with the topic and the appropriateness of their current educational resources.

Discussion Status

The conversation includes attempts to clarify the equation for magnetic force, with some participants suggesting that the original poster should refer to textbooks or other educational materials for a better understanding. There is a mix of responses regarding the original poster's background and the complexity of the problem.

Contextual Notes

Participants note the original poster's self-identified educational level and their experience with physics topics, raising questions about the appropriateness of the problem for their current studies. There is mention of the original poster encountering this problem in a sample paper from an IIT-JEE institution.

pratyushag
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Homework Statement



A wire of length L is placed in a magnetic field B,If the current in the wire is I,then maximum magnetic force on the wire is?

Homework Equations


The Attempt at a Solution



Honestly,I have no idea how to do this..(Im in class 9)
 
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You should have an equation that gives the magnetic force on a wire of some length with some current running through it.
 
what is the equation?
 
it should look something like F = BIL

do you recognize it?
 
Im sorry I am coming across this the first time... could u explain it please
 
pratyushag said:
Im sorry I am coming across this the first time... could u explain it please

You say you are in class 9, i doubt it that i was taught this when i was in class 9. Are you taking any tuition or something to learn this extra stuff?

And about the question, you should first refer some book to learn about the force on a current carrying wire in a magnetic field.
 
If this is a homework problem for school, then you certainly must have been shown this equation before. If it's not a homework problem, then I suggest doing what Pranav-Arora said and going and looking it up.
 
Yes i am in class 9, and yes i have been taking special tuition...

I have completed the class 9 syllabus of science and have completed class 10(physics&maths).
I know all about Oersted,Flemings right hand,left hand,electromagnetic induction
Moreover i have started training for the Indian National Physics Olympiad (INPhO) and Regional Mathematical Olympiad.

I encountered this problem in one of the sample papers of an IIT-JEE instituiton
hence i was asking about it,and i have never seen or taught this equation ever,i tried looking up the net but found gibberish...
So could you please explain or provide a suitable link?
 
pratyushag said:
Yes i am in class 9, and yes i have been taking special tuition...

I have completed the class 9 syllabus of science and have completed class 10(physics&maths).
I know all about Oersted,Flemings right hand,left hand,electromagnetic induction
Moreover i have started training for the Indian National Physics Olympiad (INPhO) and Regional Mathematical Olympiad.

I encountered this problem in one of the sample papers of an IIT-JEE instituiton
hence i was asking about it,and i have never seen or taught this equation ever,i tried looking up the net but found gibberish...
So could you please explain or provide a suitable link?

Instead of completing everything in rush and directly trying to reach the JEE paper, better first complete your textbooks, i remember, there's a lot of stuff in them. Buy a good book rather than dwelling on net for the information. :smile:
 
Last edited:
  • #10
pratyushag said:

Homework Statement



A wire of length L is placed in a magnetic field B,If the current in the wire is I,then maximum magnetic force on the wire is?


Honestly,I have no idea how to do this..(Im in class 9)

Force on a (current carrying conductor) this is the wire in your case, lying at right angle to a magnetic field can be given as:

F=BIl
B=flux density, magnetic field in your case
I= current
l=length of the wire
 

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