Calculating Current and Torque in a Rectangular Loop

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Homework Help Overview

The discussion revolves around calculating the current in a rectangular loop based on given dimensions, number of turns, and maximum torque in a magnetic field. The problem involves concepts from electromagnetism, specifically relating to torque in magnetic fields.

Discussion Character

  • Exploratory, Conceptual clarification

Approaches and Questions Raised

  • The original poster attempts to apply the torque equation but questions its correctness and how to determine the sine component. Some participants clarify that maximum torque occurs at a specific angle, while others express confusion about the implications of this.

Discussion Status

The discussion is ongoing, with some participants providing clarifications about the conditions for maximum torque. There is an exchange of understanding regarding the sine function in the context of the problem, but no consensus or resolution has been reached yet.

Contextual Notes

Participants are navigating the relationship between torque, angle, and current without complete clarity on the application of the equation or the significance of the angle in this context.

matt72lsu
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Homework Statement


A rectangular loop of 260 turns is 33 cm wide and 17 cm high.
What is the current in this loop if the maximum torque in a field of 0.49 T is 24 N m?


Homework Equations



torque (t) = NIABsintheta

The Attempt at a Solution


I'm not actually sure if this is even the correct equation. It was the closest one I could find with most of the variables. If it is the correct one, how do you find sin? Thanks for the help
 
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The torque is maximum when theta is pi/2.
 
i have no idea what that means
 
matt72lsu said:
i have no idea what that means
The torque is maximum when theta is pi/2. So that sin(pi/2) = 1.
 
oh ok. thanks
 

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