(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

The rectangular loop has a mass of .15 g per centimeter of length and is pivoted about side ab on a frictionless axis. The current in the wire is 8.2 A in the direction shown. Find the maggnitude and direction of the magnetic field parallel to the y-axis that will cause the loop to swing up until it's plane makes an angle of 30 degrees with the yz plane.

2. Relevant equations

torque=IBAsin(phi)

I=current

B= Magnitude

30 degrees

A= area (8cm*6cm)=48cm^2 => .48m^2

3. The attempt at a solution

using the right hand rule i know the direction is in the + y-direction.

with the equation i have, i don't how to fit the mass of the loop. so then i was trying to find the force but lack enough information from the problem. please help!

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# Homework Help: Magnitude in a rectangular loop

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